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New Pressurex Zero� Sensor Film Measures and Maps Very Low Contact Pressures

Nov 06, 2008

Madison, NJ (USA) � November 6, 2008 � Sensor Products Inc. announces Pressurex Zero�, the newest addition to its tactile pressure-indicating sensor films. Pressurex Zero� characterizes contact surface pressure down to an extremely low 7.2 PSI (0.5 kg/cm2). It is an easy-to-use flexible film that is placed between contacting or mating surfaces to instantly and accurately map and measure pressure magnitude and distribution. Variations in contact surface pressure are immediately visible by the impression made on the film.

In Surface Mount Technology, Pressurex Zero� can be used in printed circuit board lamination and to analyze the squeeze pressure distribution of solder cream. The spatial resolution of the film is fine enough to expose minute surface defects and other imperfections. The range for Pressurex Zero� is 7.2 � 28 PSI (0.5 � 1.97 kg/cm2). Pressurex is available in eight different pressure ranges with the highest measuring impact up to 43,200 PSI (1,300 - 3,000 kg/cm2).

Pressurex� comes in the form of a thin clear plastic sheet (4 or 8 mil), physically similar in appearance to paper. When placed between contacting surfaces, it instantly and permanently changes color directly proportional to the actual pressure applied. The precise pressure magnitude (PSI or kg/cm2) is easily determined by comparing color variation results to a color correlation chart (conceptually similar to interpreting Litmus paper). Pressurex� can also be scanned through one of Sensor Product's optical imaging systems.

The film is used in the design, manufacture, calibration and quality control. Contact surface pressure variations often result in manufacturing flaws and product defects. Design and assembly of products that use the compressive force of clamps, fasteners, connectors and bolted joints to join surfaces � including heat sinks and semiconductors � are particularly aided by Pressurex�. Products that depend on defined or uniform pressure distribution over the contact surface area, such as rollers, wafer polishing, heat sealing equipment for packaging and lcd panel assembly are candidates for Pressurex Zero�. Other applications include flow check for fuel cell stacks and squeegee applications.

Pressurex� is very flexible and conforms to curved spaces. It is ideal for invasive, intolerant environments and tight spaces not accessible to conventional electronic transducers. To request a free sample range of Pressurex�, contact Sensor Products Inc. at 1.800.755.2201 (USA and Canada) 1.973.884.1755 or info@sensorprod.com. Visit their website to view their entire line of products at http://www.sensorprod.com.

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