Instrumentation • Electronics
Conductive coatings provide a clear alternative to mesh windows
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s large LCDs have become an increasingly popular choice of user interface - particularly on portable electronics equipment such as medical devices – designers have had to address the EMI shielding challenges that result from having a significant aperture in an otherwise shielded equipment housing. Shielded windows fitted over the aperture, in front of the display, can restore the EMI-blocking property of the conductive enclosure. Technologies, such as Chomerics’ WIN-SHIELD material, addresses this challenge by using a one-piece, lightweight window that has a transparent conductive coating such as indium-tin oxide (ITO). Where moderate levels of shielding effectiveness are required, this approach provides an alternative solution that has minimal effect on light transmission. l
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Parker Hannifin Ltd, Seal Group, Chomerics Division Europe, High
Wycombe, Bucks, UK.
www.parker.com
Testing for quality and reliability in electronics
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ssuring quality and reliability of electronic
products and systems within cost constrains is a challenge. Q-Star Test provides cost-effective solutions for IC, electronic circuits and systems testing enabling early detection of errors and manufacturing defects
resulting in strong time savings. The company’s solutions support the application and implementation of advanced Iddx and Issx test strategies and allow rethinking and optimising electronic testing. They are small high performance intelligent plug-and- play add-on current measurement instruments that are used for probe and final test application. Positioned on the interface board that links DUT and Test platform they extend ATE functionality and easily excel other related systems by a factor of 100 as regards measurement speed, quality and repeatability.
Besides focussing on test our
service pack also includes electronic prognostics solutions for the elaboration of electronic health and better lifetime prognoses. Prognostics carries out on-line diagnosis via test structures that are built-in in the design during application, thereby proactively triggering maintenance and repair, achieving maximum uptime and assured operation of the system and supporting condition based maintenance. Q-Star Test also offers consulting, training and engineering services. l
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Q-Star Test is based in Brugge, Belgium.
www.QStar.be
Eddy current sensors manufactured with embedded coil technology
M
icro-Epsilon has developed a completely new manufacturing technology for eddy current
sensors. Using embedded coil technology (ECT), the sensor is housed in an inorganic carrier material, which provides temperature and shape stability. Conventionally wound sensor coils are replaced by ECT. The carrier material can even hold electronic components. The technology provides more freedom in the physical design of the sensors. In the case of special operating environments, the ECT sensors can be easily adapted to the conditions. The electronics are either integrated in the sensor or are housed separately. The significant benefits of ECT
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technology are its high operating temperatures of up to 350°C, extreme temperature stability, high mechanical load capacity and its suitable for use in strong electromagnetic fields. Due to a hermetically sealed enclosure, the sensors can also be used in ultra high vacuums.
The new sensor technology has already proved itself in many challenging applications. Due to their high temperature stability, ECT sensors are used for the alignment of mirror segments in the latest giant reflector telescopes and for measuring the grinding gap of refiners in the paper industry due to their high mechanical load capacity. In the semiconductor industry, the sensors are ideal as they are resistant to ultra high vacuums and strong electromagnetic fields. l
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Micro-Epsilon Messtechnik GmbH & Co KG is based in Ortenburg, Germany. www.
micro-epsilon.de
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