Product category:
QC and QA systems
News Release from: Sensor Products | Subject: Pressurex
Edited by the Processingtalk Editorial
Team on 15 April 2003
Thin sensor perfect for process control
QA
Sensor Products announces Pressurex, a tactile force indicating sensor film (TPSF), for assessing compression magnitude and distribution between any two mating or impacting surfaces
Applications of the Pressurex sensor film exist for both manufacturing process control and machine/component inspection and calibration Pressurex TPSF is a valuable aid in QC/QA for assessing pressure distribution between gasketed and flanged interfaces, heat sealing bars, components, tools or machines, welding heads, and determining drawing pressure in dies
This article was originally published on Processingtalk on 9 Mar 2005 at 8.00am (UK)
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Applications include material lamination and impact forces, electronic component packaging, metal and ultrasonic welding, roller nips, clutch and brake plates.
In general, any application that needs visually detailed analysis of stress between two surfaces can benefit from the Pressurex capabilities.
"Our Pressurex TPSF," says Jeffrey Stark, Senior Technical Manager, "is a non-destructive (NDT) concept that can greatly enhance yields and improve quality with a relatively minor investment.
With a maximum gauge of 8 mils, Pressurex is ideal for invasive intolerant environments that cannot accommodate traditional load cells and other transducers.
Its ease of use makes it an extremely low-cost (approximately USD 0.02 to 0.05 per square centimetre) and effective testing medium".
Pressurex TPSF comes in the form of a large thin sheet, actually a film, similar in appearance to a sheet of paper.
When placed between interfacial surfaces, the sensor film instantaneously and permanently changes colour to reveal minute measurements of dispersion and degrees of pressure.
The intensity of this colour is proportional to the amount of force applied, allowing the user to actually quantify the stress characteristics across the surface.
Precise PSI (kg/sq cm) can be determined by comparison of the sensor film to a colour calibration chart (conceptually similar to interpreting Litmus paper), or by using one of several imaging systems that Sensor Products supplies.
The product is useful for assessing interfacial stresses that occur at gasketed and flanged interfaces, in any kind of bolted joint or clamp, in lamination presses, roller systems and heat sealers, during welding, in materials testing and from impact forces.
To obtain a free product sample or more information, please contact Sensor Products.
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