Tuesday, 6 November 2012

Product Review: Cobra iRadar


Although never having a speeding ticket - I decided it was time to purchase a radar detector. Not because it was needed, but because it was a radar detector which interfaced with iPhone. Said radar detector was the Cobra iRadar, I was sold.
After owning the unit for a week, and completing a 17-hour holiday trek from Chicago, to Houston, how did the unit perform?

Features & Design:

Priced at $129.99 retail, the iRadar unit can be considered a lower mid-range unit.  Cobra touts the unit as the most advanced “smart detection” unit on the market.
The unit itself is a sleek piano black (read: light-reflecting) unit with a single visible light to indicate Bluetooth pairing status. The included car charger also houses a USB port, which is a nice touch for a device intended to be used with a smartphone.

Performance:

Cobra iRadar AppBeyond basic radar alerting, a majority of the products performance is courtesy of the iRadar app. Since there is no physical display on the radar unit, all alert data is displayed within the app. While triggering an alert, a brief prompt is displayed allowing a user to mark the reading as “true” or “false”. This feedback is then geo-tagged (using the phones GPS) and sent to Cobra who maintains a record of these false alarms for better accuracy. Alerting during highway driving was spot-on. City driving however, still produced a number of false alarms for security systems and roadside speed indicators.
Other functions of the iRadar app include a digital speed readout and voltage reading for the connecting 12v outlet. While the later seems frivolous, a number of user reviews point out that the unit alerted them to various battery or alternator failures through its low voltage warning.

Conclusion:

Overall, the iRadar, and companion app are top notch, if a tad distracting. It was disappointing to see that the app still used the phones GPS while running in the background – meaning a large impact on the phones battery life.  It didn’t take long before my phone, Garmin GPS, and iRadar occupied every port in the car (including an iPod cable hanging haphazardly from the glove box).
At the completion of the trip, the iRadar unit proved to be a well-rounded performer, and an excellent value considering the added features enabled by a paired iOS device. While completely distracting in use, the iRadar is a definite recommend, only for those who appreciate the sheer novelty of having yet another connected product, to control via their iDevice.
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Review: Pioneer AppRadio

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Review: 2012 Apple TV – New Interface Preps for App Boom

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Apple TV started life as a half-baked media center device in 2007, during the height of the HDTV boom. At the time, the unit shipped with HDMI, component video, optical audio, USB connectivity, and a built-in hard drive. It soon became clear that the future of media was in cloud-based streaming and not physical file ownership. During its next revision, most everything was stripped from the device – with it being repositioned as a $99 streaming only-device.
With a third revision announced during this month’s Apple press conference, the newest Apple TV is mostly the same physical hardware, with a few critical software changes that signal Apple may have finally made amends with media in the living room.
Design and Hardware:
The design of the current generation Apple TV is wholly a carry-over from the previous iteration. The unit carries a sleek black puck shape, with polished sides, and a matte top. A single white LED lights on the front to show it is alive and well. Overall the unit is a very unobtrusive addition for most any home theater.
The unit is packaged with the same uninspired aluminum Apple remote. Overall the remote itself looks great, but is not very functional, with a narrow and long shape that is awkward to hold. The remote also uses IR instead of RF and requires direct line of sight. For this reason, the Apple TV cannot be placed into a cabinet without an additional IR blaster.
A final hardware tweak involves the newer A5 processor. This gives the Apple TV roughly the same processing power as an iPhone 4S and enables 1080p video playback on the device.
Software:
All of Apple’s important changes have been made to the software and interface. With the exception of 1080p playback, all of the updated features will also be made available to owners of the previous generation Apple TV.
From within the new interface, users are greeted with a friendlier iOS-like interface. Each application, or channel is given a dedicated button on the home display. Current channel partners include YouTube, Vimeo, Netflix, MLB, NHL, and Wall Street Journal, among others. After clicking into an application, the interface return to being mostly identical to the previous generation model, but it is important to note the interface change, not because it looks more appealing, but because it indicates that the interface is designed to support expanded app and/or channel support.
After clicking into one of the Apple TV channels, the interface returns to being a carry-over from the previous generation. In addition to streaming content from a “Home Sharing” enabled PC, the new Apple TV can also access your previously purchased movies, music, and TV from iCloud. This means you no longer need to keep and archive downloaded iTunes files – a big departure and welcome change in keeping with the cloud direction of media. Even podcasts can be marked as “favorites”, so they are bookmarked and streamed directly from Apple’s servers – without the need to sync and download physical files.
If unfamiliar with the previous generation model – the Apple TV can retains the ability to serve as a “AirPlay” destination for video and audio. From an iOS device, such as an iPad – the unit can also support display mirroring, if you would like to conquer Angry Birds on the big screen. This screen mirroring support is also expected in the next generation of OS X on the desktop – making Apple hardware in the living room an even more cohesive setup.
Summary:
If looking only at the surface level, or analysing changes in hardware, the new Apple TV would look to be an update for updates sake. But it is quite pleasing to see the number of changes made to the software that make the device a much more logical choice for the living room.
Unlike systems like the Boxee Box, the Apple TV also does not include USB ports, or the number of channel partners. Where the new Apple TV makes most sense is if you already buy a majority of your content in iTunes. For this block of people, you are able to forgo traditional channels for podcast streaming from an even larger list of providers – as well as streaming every TV show, Movie, and song ever purchased through iTunes. If you are still a holdout for subscription services such as HBO Go and Hulu+, I would not be too concerned – as the revised interface on the Apple TV all but confirms that these additional sources are being planned.
Since the Apple TV software update is available to previous generation owners – this group of shoppers need not apply. For any other shopper who has purchased content in iTunes, owns a Mac, or is simply looking for an easy, low cost streaming device to get on-demand content to their HDTV, the revised Apple TV is definitely worth the $99 purchase price, and if hunches on the interface redesign are correct – an expanded app library and pending SDK could make the Apple TV the streaming device to beat.
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Blackberry Playbook Review: ‘It’s not an iPad’


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It’s been roughly a year since the Blackberry Playbook saw the light of day. At the time of release, the unit had top-notch hardware, a fancy new operating system, and an iPad mimicking $499 starting price. Fast forward a year, and the units can be had as low as $199 at the local bargain bin. But even at fire sale prices, should consumers care?
Hardware: Like most hardware at the Blackberry high-end, the Playbook has a premium feel that bests most of its direct competition. The unit packs a 7” IPS display, as well as cameras front and back. The screen has excellent color and viewing angles, while the rear camera at 5MP, records full 1080P video. Viewing the recorded video from a PC, or television, shows excellent color and detail on par with a mid range point-and-shoot.
Other hardware highlights include a 1Ghz dual core processor, 1GB of RAM, dual mics for stereo recording, stereo speakers, and micro-HDMI out. Engadget’s tests peg battery life on the device at 7 hrs. For those keeping score, these hardware specs, sans the lesser quality display, match pretty closely those of the New iPad.
Software: The Playbook runs it own “Playbook OS”, which is based on QNX. With a 2012 update to version 2 of the software, Blackberry added the ability to run Android apps on the device. Doing this however is not easy, and proves useless for a typical consumer.
Navigating the device is a pleasure using the devices card interface; the Playbook draws heavily from HP WebOS in that regard. Users can slide and swipe to toggle between and close out apps. Multitasking on the device was a dream and a much better experience than both iOS and Android.
Visiting the Playbook App Store unfortunately is where the experience begins to come apart. The store has a number of high quality applications and games, but only a fraction of those on competing platforms. Customers looking to use Instagram, Hulu+, or Kindle amonghundreds of others, need not apply. Casual users and gamers should feel quite at home on the device. The game selection on the device was a bright spot – with searches for Angry Birds returning every possible iteration.
Verdict: Even a year later, the Blackberry Playbook has excellent hardware, an outstanding interface, and for the casual user, is an overall excellent value at $199. Unfortunately for Blackberry, it doesn’t matter much the quality of hardware, since it continues lack the breadth of applications that other platforms support. It is easiest to summarize the Playbook in saying that ‘it’s not an iPad’, or ‘it’s not the one my friends have’.
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Review: Olympus “Pen Mini” E-PM1


Four years after partnering with Panasonic to create the micro four-thirds spec, Olympus has expanded its offerings into an entire range. Today, Olympus’ line of compact micro four-thirds cameras are deemed the “PEN” line. A play on words for the cameras’ small size. The smallest of this series is the “PEN Mini”, also known as the Olympus E-PM1.
The E-PM1 looks to hit the sweet spot for micro four-thirds cameras. It includes the same image sensor of the more high-end PEN models, but removes a number of manual controls and a few nice to have items, such as a tilting LCD. This allows the camera to sell for a current retail price of $399, placing it at bottom end of the micro four-thirds segment.
Hardware: Without sacrificing build quality, the E-PM1 ships in a plastic body. This allows the camera to be offered in a number of colors including Pink, White, Silver, Brown, and the requisite Black. The included 14-42mm kit lens is also suitably compact. Although it uses a collapsible barrel for the lens, have no delusions of fitting the camera in any reasonably sized pockets.
Touring the remainder of the camera body, most all controls have been striped away. There is no mode dial, or other advanced shooting controls. Users are however allowed a convenient movie record button and a multi-function click wheel that allows quick access to flash, burst modes and exposure controls. All other functions are now relocated to an intuitive menu system.
Software: The menu system on the Olympus PEN line of camera warrants special mention. The camera menus on this device are visually pleasing and highly intuitive. In fact, it may be a deciding reason for why a number of users purchase this model. The menu is split into 6 menus stacked vertically. These menus allows access to Art filters, Scene, Manual, and Auto modes. The stylish menu system retains fast access to full manual controls, without confusing the user with a glut of feature options that are likely never used. If Apple were to design a digital camera, it would likely strike a pose similar to the Pen E-PM1.
Performance: Performance for most micro four-thirds camera will typically depend on your reference point. If you are upgrading from a compact model – most everyone will be please with the step up in quality. Low light performance is most improved due in part to the large sensor that can collect more light during these shots. If stepping down from a traditional SRL for portability, you will find the E-PM1 a bag of compromise. While photos are clear, there is little control of JPEG processing, so sharpness does not match that of most SRL’s.
Within the micro four-thirds segment, the E-PM1 has many competitors in its price range, these include offerings from Panasonic, Sony, and Nikon among others. What makes things more favorable for the Olympus is largely how compatible they have made the device. Since it follows the micro four-thirds spec, it can share lenses with Panasonic models, as well as a host of third party lenses and adapters. The camera for better or worse, also includes in-body image stabilization, which means that images are stabilized even when shooting with a pancake lens that typically does not include stabilization hardware. Video recording on the device was also a standout, but for less flattering reasons. The E-PM1 suffers heavily from rolling shutter while recording video. When shooting with the camera stationary, the video was crisp and saturated. Moving the body of the camera in any way while filming however will trigger “wobbling”, or “jiggling” of the video due to the in-body stabilization. This performance problem is typical of cameras with in-body stabilization, but the effect on the E-PM1 are particularly noticeably.
Verdict: Overall, the E-PM1 is an excellent shooter, with a compact body, and a highly compatibly design. Its menu system is easily the best of any camera I have used and should please upgrading compact users – as well as casual SRL shooters. While the simplified control system and video recording hiccups mean hardcore photographers need not apply – the E-PM1 excels in most other categories and is recommended for the other 95% of the population who has not had years of muscle memory trained for hardware controls.
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Nexus 7: Jellybean shines on fast but poorly built hardware


Announced only two months ago at Google’s IO developer conference, the Nexus 7 is Google’s take on a pure tablet experience. Backed and sold direct from Google itself. With the initial production run of the tablet going to the few thousand in attendance, the population has now begun receiving preorders for the much-anticipated tablet.
Hardware: Priced at a lowest tier $199, the Nexus 7 is one of the cheapest tablets on the market. For this price, users are confined to 8BG storage, and must pay $249 is the additional storage in the step-up model is needed. It is important to note that the $199 model does not look to be available at retial outlets, such as Sam’s Club, and can only be orders from the Google Play Store online. Beyond storage capacity, both version share all other internals, which include a quad core Nvidia Tegra 3 processor and 1GB RAM. This pairing of processor and RAM has garnered the Nexus 7 rave initial reviews for being one of the fastest tablets on the market in any price class. Gaming and application performance are among the best among any Android devices, tablet or phone.
From the outside, users will interface with the tablet’s 7″ IPS display with excellent viewing angles and color saturation. Only a single camera on the front is includes at 1.2MP, it is one of a few areas that Google and vendor Asus cut corners in achieving the rock bottom price. Video quality on the camera is mediocre should be used for photos in emergencies only. Additional cost cutting measures include the axing of a removable battery and SD card slot. Luckily other essentials such as bluetooth, GPS, and WiFi are left intact – a requirement for a number of popular applications, including those published by Google.
The housing of the Nexus 7 feels good in hand and is made of a lightweight rubberized plastic. Unfortunately, it only took a few days before I notice the bezel had begun to separate from the body ever so slightly. It doesn’t hinder the use of the tablet, and is barely noticeable – but it looks to be a common issue, as quick web search shows other reporting similar issues.
Software: Although the Nexus 7 offers powerful hardware at a low price, the software on the unit is arguably the main attraction. The unit shipped as the only device running Android 4.1 Jelly Bean, which includes number of new enhancements for performance and usability. ‘Project Butter’ was the term coined by Google for the efforts placed to smooth the interface of the operating system. Graphics transition, menu overlays and other visuals are now buttery smooth and go a long way to make users forget any buggy or poor performing Android experience they may have had in the past.
Google ‘Now’ deserves special mention also, as Google’s response to Apple’s Siri. Although Google Now does not allow users to dictate calendar entries and a few other niceties that Siri provides – the system excels in other areas, including location based notifications and services. An example of this is the forecast, sports score, and public transit times the system will provide when accessed. These information displays require no manual entry, instead the device will monitors user behavior – and stores information such as predicted home and work addresses. Search Google for Oakland Raider’s scores recently? These may soon appear within your Google Now dashboard the next time you access the service.
Verdict: There is very little not to like about the Nexus 7. Google has released compelling hardware with software to match. As a Nexus device, the tablet is guaranteed to get the most recent versions of the Android OS during Google’s promised 18month minimum support cycle. The only reservation remaining for this polished and high performing tablet remains to be build quality. If history is to be believed, the initial production runs of the devices should quickly resolve and production woes. If willing to wait another month or so before running to stores to slide your VISA, the Nexus 7 is highly recommended.
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iPhone 5 Review: Apple finds its 4G Camry


After booking over 2 million preorders during the announcement weekend, iPhone 5 has finally arrived in store. In order to avoid the 3-6week shipping delay now scheduled for the device, I skipped the preorder all together – and visited an Apple store to purchase a unit on launch day. For me, there was no overnight wait, or dramatic to-do. Like a number of savvy shoppers, I visited the much smaller Apple store in Emeryville, CA – rather than the expected Zoo at flagships store in San Francisco, New York, and elsewhere.
Hardware:
While fondling my 16gb iPhone 5 for Verizon, I quickly realized that the hardware is the only reason to purchase this device – iOS6, and a majority of it functions will arrive to older iDevices free of charge this week. Although the device looks largely the same as previous iPhones, it now includes an LTE radio allowing much faster browsing speeds. At my home in Emeryville, I recorded an average of 25GB download speed on Verizon LTE. Next up is the screen, it has been stretched to 4 inches. This was done by adding a half inch to the height of the device, for a more widescreen display. Colors and saturation on the display are among the best. It does not look as saturated as Samsung AMOLED screens, but the color accuracy if much better. Other, more subtle changes made inside the devices include a faster A6 process, and 1GB of RAM. The camera hardware, while physically updated, remains at 8MP with the similar photo quality, that is bested only by Nokia’s ‘Pureview’ hardware.
Special mention is given to the new “lightning” port, which replaces that traditional 30pin dock connector. This means that long time iPhone users will need to buy one or more of the $30 dock adapters in order to continue using their hardware accessories. Apple also makes a point to mention that the phone is now 18% lighter. Oddly, the iPhone 5 uses different machining of the new metal back, which in practice makes the metal back material feel like lesser quality plastics in hand. The headphone jack has been moved to the bottom of the device, next to a larger, louder speaker which consumes spaced freed by the smaller lightening connector. Paired with the devices are new ‘EarPod’ headphones which feature an improved designed for better fit and better sound. A marked step up from the previous design, which was a continued sticking point among technophiles.
Software:
With iOS6, Apple adds more polish to its existing operating system. For most users, the most notable changes will be the exclusion of Google services. No YouTube, and no Google Maps. Apple instead includes its own mapping application, powered by TomTom, which finally provides turn-by-turn functionality. Although nice in theory, in practice the mapping application is less than ideal for all but the most casual users of the pervious Google Maps. Most effected will be users within larger cities- and anyone dependent on public transit. While turn-by-turn functionality is executed with polish, there is indeed no public transit or walking directions. This also means you won’t find public transit departure times and other related enhancements found in Google Maps. Apple maps also excludes a street view equivalent, which again – may only impact users in dense urban areas where signage mage be obscure or crowded. For more basic needs however, the included Maps application loads very quickly using vector maps. Although not a replacement for streetview, a ‘flyover’ function does allow interesting aerial shots. It is important to note that these aerial shots are not at all useful for actual navigation.
Other less subtle updates to the OS include redesigns for a number of built-in applications including the App store and Apple music player, additional functionality has also been added to certain built-n apps, including the stocks application which now includes both low and high temperature reports.
Running on the new A6 chip within the iPhone 5, iOS6 is extremely smooth. In my experience upgrading from an iPhone 4, most all interactions with the phone are faster and more smooth. This increase in performance can be attributed in part to LTE connectivity, which speeds apps needing access to web data. Another bonus of the longer iPhone 5 screen is the additional of a 5th row of application icons – folder of apps also get an increase in capacity from 12 to 16 icons.
Conclusion:
The iPhone has become the Toyota Camry of technology. It’s easy to use, and excellently engineered. It is the highest selling model, and sells to arguably the largest cross section of buyers. With iPhone 5, Apple has updated the hardware drastically – with the inclusion of more RAM, a bigger screen, revised headphone, LTE, larger battery, different materials, and a revised dock connector – yet manages this huge change without upsetting the millions of upgrade users who expect a very specific experience from the device. With version 5 of iPhone, Apple has entered maturity with the device. It improves on its best in class hardware, and improves on its best in class software – and without fail, is expected to continue deservedly as the best selling smartphone model worldwide.
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Microsoft Surface RT: Windows sheds the desktop …deal with it


With Window 8, Microsoft is attempting something revolutionary, in fact, they want you to forget Windows as we know it today. The ‘desktop’, a virtual workspace housing multiple ‘windows’ is being phase out, and Microsoft’s launch of Surface RT translate this into three words – DEAL WITH IT.
Hardware: Microsoft took take in providing the Surface RT with a compelling design. With the transition from Widows 7 to Windows 8 being quite severe, it looks as though the company decided that making the initial hardware itself would be its best change at a good first impression.
From initial glances, the Surface RT looks similar to existing tablets in the market, a black slab composed of majority screen. Once in-hand however, the Surface RT indeed feels more robust with a functional design that was purpose built to showcase Windows 8. Touring the device, there is the usual selection of power and volume buttons, with cameras front and rear. These camera however, both front and rear, are noted only as ‘720p’, which could range anywhere from 2 to 5MP. In both well-lit and dim shooting environments, the camera hardware left much to be desired and end up being the only bit of the hardware package feeling second-rate. At 1366×768, the screen on the device is not as pixel dense as today’s crop of most premium tablets, but performed excellently with movies and web pages. A micro-SD card slot, as well as a full size USB port are included to round out the port selection. Battery life clocks in around 9hrs.
Hardware features that showcase the engineering talent at Microsoft include a slick kickstand that holds the device at a slight angle for movie viewing and desktop typing, as well as the colorful selection soft-touch keyboards being offered at launch. Two models of the Surface keyboard are offered. I purchased the razor thing model in cyan. The second model keyboard comes only in black, and while more bulky, offered more tactile feedback while typing. Using the low-profile keyboard was novel, but an exercise in frustration that will not work will for all users. In completing a page of typed text, each paragraph was littered with misspellings caused by unregistered key presses.
Inside the Surface RT, Microsoft includes 2GB of RAM which it pairs with an Nvidia Tegra 3 processor. The same used in the Google Nexus 7 tablet. Prior to Windows 8, running on this mobile class processor was not possible. Choosing the ARM-based Tegra 3 as the heart of the first release device looks to be purely intentional as it limits the compatibility of the device outside of the Windows 8 tile interface.
Software: With Windows 8, Microsoft has begun a much needed strategy shift in accepting mobile computing as the current and future direction for computing. The company seems to acknowledge that the way people use computers and the information being accessed no longer required a traditional Windows environment. Rather than wither on the vine as Apple and Android tablets consume increasing amount the computer market – Microsoft has chosen to pivot its entire user base, totaling billions of Windows installs in this direction. This is the point where the company tells you to DEAL WITH IT.
Releasing Surface RT with an ARM-based chip as the initial launch product meant that for the possible millions who buy the device – these users will not get the ability to run classic Windows applications, and would be required to live within the new Windows 8 application market. If you can do this, the Surface RT gives you the power of a desktop in tablet form. If you insist on installing Adobe Photoshop 5, then it will be a quick trip to the returns line at your local Best Buy. In fact, the Surface RT indeed provides the entire Windows desktop in a 1.5lb tablet form. The only difference between the ‘RT’ tablet and more expensive ultrabook offering is that lack of support for the ARM processor among legacy applications. A day after unboxing the device, I decided I would like to print a form – so I plugged my printer into the USB port, waited within the legacy Windows desktop for the drivers to install, then printed as normal. As I would from a desktop, in a way that simply isn’t possible, or easily done from an iPad or other tablet device. After completing the printout, I popped in my Micro-SD card for more storage, and used the legacy windows file browser to format the card. Soon after, I returned to the tile interface, where I decided I preferred the layout and touch friendly design elements. From that moment, I decided I would take a look in the application market where most my future application would come.
Clicking around the Windows 8 interface on the Surface RT is a generally pleasing experience. Anyone who is a fan, or takes a mild interest in Microsoft’s Windows Phone will find much to like with the release. Applications within the market are still very spare, although both Netflix and Hulu make an appearance. Other changes to the Windows 8 software are too many too mention, but Microsoft does include a full copy of its expensive Office 2013 suite as incentive and proof that you indeed get a full PC within the Surface RT’s compact tablet frame.
It’s easier to think of this transition in the terms as Apple’s move from PowerPC to Intel chips. The operating system was entirely the same. But there was a long delay before all of the legacy application were re-written for the new core. This is what has happened with the Surface RT, and Microsoft is hoping that this delay is just long enough for you simply DEAL WITH IT, and accept the full intention of Windows 8, as system never intended to look and behave like Windows 7, or even require a traditional desktop. After purchasing the Surface RT as a replacement for my Macbook Pro laptop, I too am learning to just DEAL WITH IT, and think I’ll be fine after all.

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FLASHPOINT TECHNOLOGY–KinectUs


The 21st century is rich in content, with images, video, and other media being shared across the globe every day.
The challenge for content providers is to make the customer’s sharing experience—as well as the technology that enables it—as efficient as possible. Ultimately, these efficiencies can determine just how profitable a content provider’s business model can be.
To the benefit of providers and users alike, FlashPoint Technology has developed KinectUs, a hybrid P2P sharing platform offered exclusively to select content providers and partners.
With its modular, easily integrated technology, KinectUs takes providers’ cutting-edge solutions off the edge into a new level of functionality. Its multiple patented technologies offer the speed and economics of P2P with the control and availability of centrally hosted solutions.

THE KinectUs ADVANTAGE FOR CONTENT PROVIDERS
Better Than Central Hosting
  • Providers control and lower infrastructure and bandwidth cost.
  • New customers attracted by the simpler, almost instant process for sharing content.
Better Than Traditional P2P
  • Users' content available 24x7, even when they are not connected to the Internet.
  • Easy for the average consumer to use, with no need to understand firewall configurations.
  • All personal content access controlled by the user.
  • A standard Web browser (rather than special software) is all that's needed to view content.
Better Than Flying Solo
  • Allows providers to allocate R&D resources more efficiently.
  • Expedites time to market.
  • Boosts providers’ products, widening their future options.
  • Gives access to FlashPoint’s deep pool of content-centric intellectual property.
THE KinectUs PLATFORM
The KinectUs Platform is comprised of two key components:
KinectUs Client:
  • Invisibly integrated into the digital content provider’s application that resides on the user’s computer. The digital content provider’s application provides the direct interface to the user for content management and manipulation, while the KinectUs Client manages the sharing of all resulting content in the background.
  • Automatically converts a user’s computer into a “digital content server,” which facilitates the sharing of this content directly from the computer.
  • Manages security of the site’s content. Users have the choice to make content public, private, or password protected.
  • Establishes an outbound only connection through the user’s firewall to the KinectUs Server. As a result, requires no configuration changes to the user’s firewall. 
KinectUs Server
  • Manages all Internet connections between the user’s computer and guests wishing to view content.
  • Manages a configurable central storage system that can house synchronized content from the user’s computer (making content available even when the user is not connected to the Internet). Rules can be established that remove inactive content from storage, while keeping it available for viewing directly from the user’s computer.
  • Manages operations of the optional KinectDirect module, which provides a managed direct peer-to-peer connection that significantly reduces the bandwidth expenses of the content provider.
Note: KinectDirect is currently under development.
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Thursday, 1 November 2012

Microsoft’s App Deficit Disorder


In the crowd at Microsoft's Build conference, where more than 2,000 software developers gathered in Redmond, Washington, this week, sat Atta Elayyan, cofounder of a two-person New Zealand startup called Lazyworm Apps. Although low-profile, the event was one of the most important for Microsoft this year—with desktop and laptop sales shrinking and other companies far more successful in mobile computing, Microsoft badly needs to persuade software developers like Elayyan that it's worth writing code for its latest platforms.
Elayyan has built Metrotube, a stylish YouTube video app for Windows phones, and now Tweetro, a widely praised Twitter app for Windows 8, Microsoft's touch-screen-focused operating system that is designed to bridge the divide between PCs and tablets and phones. Elayyan hopes to work on more of what Microsoft has lately termed "modern-style" apps, and is among the more enthusiastic developers creating software for the new Windows platforms.
"We haven't made much money yet," says Elayyan, who is balancing a full-time job with his startup on the side. "When the platform does succeed, hopefully we can monetize."
It is indeed a perilous time for Microsoft when a young designer working on little sleep halfway around the world builds a Twitter app for its new operating system before Twitter itself bothers to. On Tuesday, Twitter announced that it would develop a Windows 8 app, but at a rather leisurely pace over the next few months.
Microsoft is desperately behind in mobile and it needs to woo all kinds of software developers if it is to have any hope of catching Apple and Google, which lead the market for mobile operating systems with iOS and Android, respectively. The company has worked well with PC software builders for decades. But now, with users more interested in portable apps than desktop software, its still-nascent app ecosystem is one of the company's most glaring weaknesses.
One of the key problems could be convincing users and developers to accept another mobile platform and app ecosystem. "Developers have only reluctantly accepted a very much two-horse race within mobile," says Jason Armitage, a principal analyst at Yankee Group, referring to iOS and Android. "Microsoft has time, but it has to work quickly."
Microsoft's new Windows Store, the place to find new apps, was stocked with more than 9,000 offerings globally when it launched last Friday, and it is up to more than 10,000 this week, according Wes Miller, an analyst who has been tracking counts. Only about half of these are available in China or the U.S., the two highest counts of any countries. Games are the biggest of any one category, but some types of app, such as a good RSS reader, or social apps like Facebook and Quora, are missing altogether, Miller says.
At a Friday event, the phrase "grand opening" was bandied about. But specifics on the store's progress were slim, and Microsoft hasn't provided its own count. "It looked very much like a soft launch," says Armitage.
Microsoft was more specific at its Windows Phone 8 launch on Monday. New phones running this software can also use apps built for previous versions of the operating system. There are now 120,000 Windows Phone apps and, importantly, among them are 46 of the top 50 apps available in other app stores, as Joe Belfiore, manager of the Windows Phone Program at Microsoft, noted on Monday. But still, the total is a far cry from Google's and Apple's stock of 700,000.
Although any individual interacts with only about 10 apps regularly, there is a "long tail," says Armitage, with a few of those 10 apps relatively unique to a person's location, hobbies, or occupation. That's where the hundreds of thousands of apps beyond offerings like Netflix or ESPN—both big-name titles that already launched in the Windows 8 Store—could make or break whether a consumer will buy a Windows device. If consumers don't see apps they use frequently, like a specific game or transit app, they might not buy a Windows device.
As a result, the smaller number of apps could dampen enthusiasm for Microsoft's new Windows 8-powered device, called Surface, and for other tablet devices that use a version of Windows 8 called Windows RT. While other Windows 8 PCs and devices can still run older desktop software, Surface and Windows RT devices can only use Windows Store applications.
More importantly, Microsoft wants to build and have more control over an app "ecosystem" across all devices. Last week, for example, it launched an app that syncs Windows 8 phones, tablets, and PCs.
Even for large companies, it's not cheap to develop a Windows 8 app; the cost can be hundreds of thousands of dollars. New kinds of apps are crucial, and why, as Miller says, Microsoft needs to build a "virtuous cycle" of developers building apps and then consumers wanting to buy the devices.
While many developers wait and see, Microsoft certainly wooed some at Build. It gave out Surface tablets and Nokia 920 phones, and drew applause at its big-spending advertising campaign for its new products. It is also offering slightly better (though largely similar) revenue-sharing terms compared to Apple.
Microsoft's Steve Ballmer and other executives also like to tout the huge existing Windows desktop audience—even though it's unclear how many of these consumers will upgrade to Windows 8 (four million have done so already), or how many will use the new touch-optimized apps.
There is, at least, early hope that developers will see the numbers they are seeking, and some see a lack of competition as an advantage. Tweetro was downloaded 140,000 times before the Windows Store publicly launched (it was made available to early adopters). A few days later, it's up to 177,000 unique downloads, what Elayyan called a huge spike, and one that would be harder to achieve with a similar offering in a more crowded marketplace. "These fresh platforms have given us an opportunity," he says.
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The Best Medical Apps of 2011 By Carolyn Drake


As the year comes to a close, one cannot help but reflect on the astounding technological advancements made in 2011, particularly since such progress has greatly benefited the medical industry.

            Arguably, 2011 was the year of the mobile application; mobile apps for SmartPhones equip practitioners with outstanding resources and have the ability to greatly improve the quality of patient care. Listed below are 10 such applications for Apple products like the iPhone and iPad which have aided medial field workers throughout this past year, and hopefully will continue to do so in 2012.
                                   
  1. AirStrip – Cardiology (iPhone)
            AirStrip Cardiology was created by AirStrip Technologies, LLC. The application allows physicians to view, review, interact with and analyze the ECG history of a patient, but in a revolutionary format. It facilitates quicker and more accurate diagnosis and treatment of cardiac patients, and the app can be used in the hospital or by caregivers providing in-home treatment. 

            Additionally, “AirStrip Cardiology allows for unprecedented collaboration between Emergency Medical Systems, Emergency Department and Cardiology teams – especially when transporting potential AMI and STEMI patients,” according to the product description on iTunes. This app requires iOS 4.2 or higher.

  1. Epocrates (iPhone)
            According to a news release from Epocrates Inc, the most popular medical application in the iTunes store is Epocrates, and it is not hard to see why. Epocrates is a mobile drug reference resource which offers speedy access to reliable drug, disease, and diagnostic information, including thousands of prescriptions and medicinal facts.  The free version also provides pill identification—which classifies capsules by imprint code and physical characteristics—and a program which recognizes and informs the user of adverse reactions between medications, providing information for up to 30 drugs simultaneously. The premium version of Epocrates supplies physicians with even more, such as information for evidence-based treatment for hundreds of diseases and conditions.

            The Epocrates Inc. news release went on to say that “more than one in five physicians are actively using Epocrates on their iPhone or iPod touch.” The iTunes product description boasts 45,806 ratings overall for the Epocrates line of applications.

  1. Skeletal System Pro II – (NOVA Series) (iPhone/iPad)
            Called by Apple as “one of the top 5 medical iPad apps of 2011,” the Skeletal System Pro II (NOVA Series) was developed by 3D4Medical with the aid of Stanford University School of Medicine. The application includes a greatly detailed three dimensional skeleton which the user can rotate and zoom in on certain areas. They can also “cut” the skeleton open to study the human bone system, making this application an ideal teaching tool for not only medical students but for patients as well. Doctors can easily use the tool to help explain and educate patients one particular conditions or injuries.

            Video tutorials exploring the many functions and uses of this app are available for both the iPhone and iPad.

  1. Mobile MIM (iPhone/iPad)
            Mobile MIM first hit the market in 2008, but it was yanked off the shelves after regulatory concerns were expressed. Luckily, the Food and Drug Administration (FDA) approved the mobile radiology application a 510(k) clearance in February of this year.

            According to the FDA’s Summary of Safety and Effectiveness on MIM, “The Mobile MIM software program is used for the registration, fusion, and/or display for diagnosis of medical images from only the following modalities: SPECT, PET, CT, and MRI.”  It also offers wireless and portable access to medical images and safe data transfer.

  1. Medical Spanish (with audio) (iPad/iPhone)
            This app by Batoul Apps has been around for a while, but it remains a steady must-have for any healthcare provider who aids a large Spanish speaking population. It allows users to search for specific words and phrases, and 6,000 previously prepared phrases allow for quick and easy translation—especially when paired with an audio feature. WiFi is not necessary to use this program, so it is very portable and easy to use pretty much anywhere. Reviews of the product have been very positive, and updates are expected in the near future.  

  1. Blausen Human Atlas (iPhone/iPad)
            Created by Blausen Medical Communications, Inc., the Blausen Human Atlas 3.4 provides doctors, nurses, and caregivers a device ideal for conveying important information and concepts to patients via three-dimensional medical animations of the human anatomy paired with a search engine filled with a dictionary of medical terms. It also is the perfect learning tool for medical students, and is available in multiple languages.

  1. AirStrip Patient Monitoring (iPad)
            Made by the By AirStrip Technologies, LLC, this AirStrip application is a powerful diagnostic and monitoring tool.The app allows healthcare providers to remotely monitor patients from anywhere as long as they have a cellular or Wi-Fi connection. AirStrip lets clinicians monitor the vital signs of patients, like blood pressure and cardiac waveforms, at nearly real-time speeds. Doctors can also use the application to check up on and record patient labs, medications, intakes and outputs, and allergies. Overall, the application has the ability to significantly decrease and even eradicate time delay in the clinical assessment and treatment of patients.
  1. Drchrono EHR (iPad)
            This application allows for an entirely paperless record keeping process which also serves to accumulate all patient information into one digital file. The procedure begins by having patients check in using an iPad when they arrive for an appointment. From there, the entire visit is recorded and integrated with the patient’s medical record using drchrono. Drchrono allows individual practices to design and utilize custom clinical forms, update patient medications and appointment schedules, and bill any insurance company in the US digitally with the use of a singular app. The application also boasts the incorporation of “Medical Speech to Text technology,” which lets the user record anything into a patient’s file simply by speaking.

            Lastly, drchrono is certified as a complete electronic health record in accordance with federal incentive programs.

  1. OsiriX HD (iPhone/iPad)
                OsiriX HD is another application that is an oldie but a goodie, and still very useful within the medical field. It has won multiple awards, including Best Medical App of 2009 from Mobile Awards. This app allows users to download and maneuver through images from devices such as ultrasound machines, CT scanners, and MRI’s in the “standard DICOM format used by the medical/scientific industry,” according to the product description on iTunes. Doctors can easily flip through different images digitally without having to physically see them, and they can zoom in on certain areas or alter the contrast colors in order to increase picture visibility.

  1. Rx-Writer (iPad)
            Featured as “New & Noteworthy Medical Application” by Apple, Rx-Writer is a secure digital method to fax prescriptions directly from a physician’s iPad to a pharmacy. While the transfer of the prescription itself more expedient, the app also cuts down on the time spent writing, tracking, researching, and renewing prescriptions. Additionally, the application keeps track of the medications patients are on, and allows doctors to view lists of prescriptions either chronologically, alphabetically, or a custom method. Finally, the application allows the user access to the FDA drug database within seconds, so doctors can present information and decisions to patients much faster than they would be able to if lengthy researching were necessary.
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Electronic Test Result Access Does Not Reduce Test Ordering



Tuesday, March 6 (HealthDay News) -- Danny McCormick, M.D., of the Harvard Medical School in Boston, and colleagues evaluated 2008 data from the medical records for 28,741 patient visits to 1,187 office-based physicians to determine whether improved access to medical records and laboratory test results reduced the number and associated costs of diagnostic tests ordered.
Rather than reducing the number of imaging tests ordered, the researchers found that physician access to computerized imaging results was sometimes associated with a 40 to 70 percent increased likelihood of an imaging test being ordered. Similarly, additional laboratory tests were also ordered in cases where electronic laboratory results were available. The electronic availability of test results, rather than an electronic health record itself, was found to have an impact on ordering.
"We found no evidence that office-based physicians with electronic access to imaging or blood test results order fewer imaging tests or blood tests, respectively. Indeed, at least for imaging, the reverse may be true: Facilitating physicians' access to test results through computerization may increase diagnostic image ordering," the authors write.
Abstract
Full Text (subscription or payment may be required)

Copyright © 2012 HealthDay. All rights reserved.


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Health Information Technology Tools Help Improve Care for Patients with HIV/AIDS

Using electronic decision support tools helps clinicians track the health of patients with HIV/AIDS and contributes to better compliance with recognized performance and quality measures. 

Study results show that use of a Web-based health information support system to monitor health status and track implementation of performance measures in patients with HIV/AIDS leads to improved quality of care.

The authors of “Electronic Health Information Technology as a Tool for Improving Quality of Care and Health Outcomes for HIV/AIDS Patients,” published in the International Journal of Health Informatics, studied “the interplay of health information technology (HIT), quality improvement and progression of health status” to determine whether “electronic exchange of health information impacts quality of care and, by extension, health outcomes of patients with HIV/AIDS.”

Researchers used eCOMPAS (Electronic Comprehensive Outcomes Measurement Program for Accountability & Success; referred to as e2), a “Web-based health information support system,” to monitor patient care in a clinical setting and to “facilitate rigorous quality improvement activities associated with the care and treatment of HIV/AIDS patients.” They followed the care of 263 HIV/AIDS medical patients at three HIV/AIDS medical clinics over three years.

They monitored patients and providers for implementation of five HIV/AIDS Bureau Performance Measures (four Group 1 measures and one Group 2 measure):
  • Percentage of clients with HIV infection who had 2 or more CD4 T-cell counts performed in the measurement year
  • Percentage of clients with AIDS who were prescribed HAART (highly active antiretroviral therapy)
  • Percentage of clients with HIV infection who had two or more medical visits in an HIV care setting in the measurement year
  • Percentage of clients with HIV infection and a CD4 T-cell count below 200 cells/mm3 who were prescribedPneumocystis jiroveci Pneumonia (PCP) prophylaxis
  • Percentage of adult clients with HIV infection who had a test for syphilis performed within the measurement year (a Group 2 measure)

For the study, patients’ CD4 T-cell count and viral load suppression indicators were also monitored as “health status indicators.” Researchers also assessed user satisfaction with e2 “as a quality improvement tool using qualitative methods.”

After analyzing the data, the researchers concluded that “availability of the e2 system was a leading contributing factor in successful quality management activities, leading to improved quality of care and health status of HIV/AIDS patients across all three clinics. Significant improvements were observed in three of the five quality indicators and in both of the two health status indicators.”

They wrote that using health information technology “as a tool for rigorous application of quality improvement methods can positively impact quality of care and health outcomes.” In this study of patient with HIV/AIDS, “health outcomes improved over time when quality improvement methods were initiated and facilitated by a responsive electronic information support system.”
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SMS Continues to Be Most Powerful Tool in Health

Over the past few years there has been an increasing amount of mobile technologies that enhance the ability to access public health information and improve the delivery of health services to the public at large, as well as to health care professionals.

The ever-diversifying nature of these technologies--and how they are being implemented--was the main focus of the 2011 mHealth Summit session, “The Intersection of Mobile Health and Public Health—Towards Greater Understanding & Collaboration."

Paul Meyer, CEO of Voxiva Inc—a mobile solutions company that offers a range of patient engagement services which incorporate social marketing and evidence-based best practices to their users—spoke about their latest initiative, Text4baby, a service that utilizes SMS technology on expectant mothers’ mobile phones to deliver pregnancy tips, or postnatal information on caring for the baby. Users can receive this service by texting to a number the word “BABY” for pre-birth tips or “UPDATE” for receiving tips after birth. 

“Over 85% of Americans own a cell phone and 72% of cell users send or receive text messages,” Meyer said. “We created a population-facing preventative health utility.” He went on to add that the service is “The SMS to expect when you’re expecting.”

One of the more riveting topics at the session was "Teens and mHealth," where Yvonne Hunt, Program Director at the National Cancer Institute, spoke about what the organization is doing to help teen smokers quit.

SmokeFreeText, an app that was to launch the day of this presentation, is a mobile cessation utility aimed at helping teenagers access customized information on how to quit smoking. “20% of teens have reported smoking” Hunt said. “More than ½ have said they have tried to quit, but they haven’t used evidence-based cessation to do so.”

Part of a larger NCI initiative called Smoke-Free Team, a website and suite of mobile apps designed for teens that “want to quit smoking,” SmokeFreeText aims to deliver custom tailored messaging by capturing demographic and behavioral information at signup. The service considers data such as age, gender, quit date, and smoking frequency when delivering their messaging.

Additionally, the frequency of the messaging will change over the course of the quit attempt, as well as provide an assessment of the user’s craving level, mood, and smoke-free status.

“Users can text keywords to iQuit at any time for extra support,” Hunt said. “They can also opt-out at any time by texting the word STOP.”
By Dan Coffey
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Magnetic Wall

As a manufacturer of "electro-magnetic wall monitoring" systems (EMI Wall), we often encounter fallacies and "myths" concerning their capabilities and operational characteristics. The following is a report on magnetic wall monitoring and its use in the OCTG industry.
GENERAL INFO
Unlike typical magnetic flaw detection systems (EMI Flaw) that are designed to detect FLUX-LEAKAGE fields, EMI Wall systems are generally used to measure the FLUX DENSITY within a magnetizing coil

When an electrical current is passed through a conductor, a magnetic field is established in and around the conductor. The strength of the magnetic field is proportional to the amount of current. In the case of a coil, the more times the conductor is "looped" in the coil--the stronger the magnetic field in and around the coil. The magnetic field strength (flux-density) is measured in "gauss." Gauss is a term used to express the number of magnetic flux lines per square centimeter (the higher the number--the stronger the magnetic field.)
Magnetic flux lines 1) follow the path of least resistance, 2) always form closed loops, and 3) never cross. They also CANNOT be nondestructively measured in a ferrous tube in standard field tests; only the magnetic field in AIR in the coil or around the tube can be measured.
flux lines

flux lines in pipe
 When a magnetizing coil is turned on, the magnetic lines of force will travel in air around the coil (perpendicular to the current direction.) - FIG. 1. In pipe inspection, whenever a ferrous piece of pipe is placed in a magnetizing coil, magnetic lines of force within the coil will travel in the material as the ferrous material offers a lesser path of resistance. With a given test configuration (coil, fill-factor, pipe placement within the coil, etc.), the number of magnetic flux lines that travel in the pipe and not in the air is dependent on the permeability of the pipe and the total amount of pipe (mass) in the coil - FIG. 2.
MEASUREMENT
In EMI Flaw detection, search coils or hall-element sensors are usually used to detect flux-leakage. Flux-leakage is found wherever there is a change (generally abrupt) in a magnetized material's permeability (ease of which the material is magnetized) or the cross-sectional area indicating a discontinuity (crack, pit, etc.) in the pipe. In an EMI Wall measurement system, hall-elements are usually used to monitor a less abrupt change in section thickness by monitoring the change in the magnetic field outside the pipe.
There are 2 kinds of EMI Wall measurement systems commonly used - 1) An AC-coupled wall system, and 2) A DC-coupled wall system.
AC coupled system

DC Coupled
 
 AC-coupled - The output of a hall-element is directly proportional to the input. If a hall-element is excited with a 5 volt power supply, the output voltage (OV) will be approximately 2.5 volts. The OV changes when the hall-element is placed in a magnetic field and oriented at an optimum angle to the magnetic field direction produced by the coil. The change in the magnetic field strength inversely affects the OV of the sensor. On AC-coupled systems, a capacitor is commonly used to remove or "zero" the OV of the hall-element - FIG. 3.This limits the AC-coupled systems to detecting only those changes in material cross sectional area or permeability that occur quick enough so as not to be absorbed by the capacitor. In other words, a wall loss can only be detected dynamically and not statically.DC-coupled - The OV of a Hall-element is read directly. When this occurs, the capacitor used in the AC-coupled method is removed - FIG. 4. This allows for a measurement of the cross sectional area and permeability of a pipe where the change is either quick or slow (dynamically and statically).
 
BENEFITS/DISADVANTAGES
AC-coupled Benefits - 1) The base line appears more consistent as the capacitor is constantly "zeroing" the signal that goes to the chart. 2) The visual effects of magnetic flux-leakage at the end of a tube (commonly called the "end-effect") are minimized for the same reason.
AC-coupled Disadvantages - 1) Small and/or large areas of wall loss that occur "gradually" over an area are not detectable. 2) Extreme wall differences between one tube and another (as with different pipe weights) are not detectable.
DC-coupled Benefits - 1) Ability to detect areas of wall loss that occur "gradually" (such as OD wear in used drill pipe). 2) Ability to detect differences in pipe wall thickness or pipe weights between one joint and another. 3) Ability to detect large differences in pipe permeability thus giving an indication of a grade change.
DC-coupled Disadvantages - 1) Magnetic end-effects are more noticeable. 2) The base line fluctuates as permeability and wall thickness vary - possibly giving an indication of a drifting baseline.
Example: In Fig.5, the flux-density reading (in air) would be less than the flux-density reading in Fig.6 due to thinning (loss of mass) on the ferrous tube (figures are exaggerated and flux density shown is not proportionate or to scale).
 
 Flux density

ferrous tube
The following 2 charts ran on a piece of 3 1/2" drillpipe. The same buggy head, coils, and cables were used. The same type of EMI system was used - however - one system had an AC-Coupled EMI Wall system and the other had a DC-Coupled EMI Wall system. Note the mid-tube gradual OD wall loss illustrated on the DC-Coupled wall system not shown on the AC-Coupled wall system. This is indicative of a typical joint of used drill pipe that wears more in the center than towards the ends due to the whipping motion in the rotary drilling process. [Large spikes on left indicate upset.]
chart 1 chart 2
MISCONCEPTIONS AND MYTHS
Misconception/Myth #1 - EMI Wall systems measure pipe wall thickness.
One may notice that usually the term "wall monitoring system" or "hall wall system" is used instead of wall thickness. This is because there are several major variables in an EMI Wall system that drastically affects the integrity of the process:
1) Permeability - The permeability of a pipe affects how easily it can be magnetized. Due to variations in material hardness and chemical composition, the permeability can and will vary. This will cause a change in the magnetic flux-density thus giving an incorrect indication of a thinning or thickening of the pipe wall.

2) Mass
- If the pipe is eccentric (thin on one side and thick on another), there will be little or no flux-density change as opposed to the same tube with a nominal wall. An EMI Wall system measures cross-sectional area. A given wall loss of 5% that is 360 degrees around the pipe will cause the same change in magnetic flux-density as a 10% wall loss that is only 180 degrees around the pipe. It is the total ferrous mass in the coil that affects the amount of flux-density in the air.

3) Flux-leakage - While EMI Wall system sensors are oriented so as to optimize the measurement of the flux-density field inside the coil, because magnetic flux lines do not cross, a local leakage field will have a small or large effect on the flux density in the area of the leakage field. This is dependent on the amount of flux-leakage and its proximity to the EMI Wall loss sensor.
Essentially, EMI Wall systems are capable of showing a change (either gradual or more abrupt) in the magnetic flux density. This may or may not be due to wall thickness. Example - An N80 grade of pipe with 12-1/2 % wall loss may give the same indication as a P110 grade of pipe that has nominal wall.
Misconception/Myth #2 -
EMI Wall loss systems can detect wall loss in quadrants.
As the flux density changes due to a change in thickness on one side of the pipe, it changes throughout the active area of the magnetizing coil. It does NOT simply change in one spot.
flux leakage
What actually occurs-as described in Item #3 above- is that the thickness change (usually somewhat abrupt-as a grind or a machined area) creates substantial flux-leakage in the localized area. This causes the EMI Wall loss sensor in that area to respond differently than the other wall loss sensors - see FIG. 7. This could be considered an undesirable aspect of EMI Wall loss measurement as it can interfere with the true flux-density reading and it is redundant as the EMI Flaw detection system is already detecting and locating localized areas of flux-leakage in the transverse system. Example - a 10% or 20% wall loss grind that occurs over a 4" or 6" area will usually give a much higher indication than the same wall loss whereas the grind is contoured out over a much larger area and the flux leakage from the grind is less drastic.
Misconception/Myth #3
- More EMI Wall sensors or channels are better or give better coverage.
Because the flux-density changes throughout the inside of the coil when the cross-sectional area or permeability changes, a sufficient wall loss in a piece of pipe placed at 12:00 in the coil will change the flux-density at the 6:00 position as well as positions 3:00, 9:00, 9:30, 6:45, etc. Technically speaking, for monitoring EMI Wall loss and FLUX DENSITY, only 1 sensor may be needed.
SUMMARYEMI Wall systems detect magnetic anomalies. Prove-up or further evaluation is critical to the integrity of the inspection.
A). A 20% grind in pipe will usually produce a larger indication than a through-drill hole even though the through-drill hole is a 100% wall loss.
B). Two 20% deep rod cuts in tubing may look like one 40% deep rod cut.
C). It is easier to detect a 5% deep grind in small diameter casing than a 10% deep grind in large diameter casing (with the same wall thickness) - because the ratio of wall loss to cross sectional area is higher in the small diameter tube.
D). A joint of drill pipe that spins in one area and creates a hard spot on the pipe will give a thinner indication because of the permeability difference.
There is a tremendous potential for development in the EMI field as well as the ultrasonic field as far as pipe inspection equipment potential - just look at what is being done in the medical industry with magnetics and ultrasonics. My report is based on the current industry standards and the equipment that I have been involved with to date.

By W.D. Averitt
New Tech Systems USA
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