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Article: Electronics Cooling

Sensor Film Measures Low Contact Pressures

Pressure profile across a heat seal

Sensor Products' Pressurex Zero® tactile pressure-indicating sensor film characterizes contact surface pressure over a 0.5 - 1.97 Kg/cm² (7.2 - 28 psi) range. The easy-to-use Pressure mapped image of a heat sink flexible film is placed between contacting or mating surfaces to measure and map pressure magnitude and distribution instantly and accurately. When placed between contacting surfaces, it instantaneously 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. Variations in contact surface pressure are immediately visible by the impression made on the film. The product is available in eight different pressure ranges.