Product category:
Sensors and Data Acquisition
News Release from: Sensor Products | Subject: Pressurex Pressure Points
Edited by the Electronicstalk Editorial
Team on 06 February 2001
Film sensors change colour under
pressure
Sensor Products Inc has developed Pressurex Pressure Points tactile force indicating films.
Sensor Products Inc has developed Pressurex Pressure Points tactile force indicating films Pressure Points represent a new cost effective and convenient method of using Pressurex sensor film
This article was originally published on Electronicstalk on 25 Oct 2007 at 8.00am (UK)
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Pressurex is a useful metrology tool in assessing compressive magnitude and distribution between contacting or impacting surfaces.
Applications exist in both machine/component inspection and calibration.
Each Pressure Point sensor film comes prepackaged in a ready-to-use blister sealed pouch.
Pressure Points are available in sizes ranging from 0.3-1in (8-25mm) diameter.
The pouch has a clear window on one side for viewing the pressure film and a pressure sensitive adhesive on the back enabling the sensor to be quickly and easily affixed to any surface.
The user simply places the Pressure Point sensor at a specific location of an interface.
When force is applied, the sensor film instantaneously and permanently changes colour.
The intensity of this colour is proportional to the amount of force applied, allowing the user to actually quantify the stress characteristics across the contacting surface.
Precise pressure readings can be determined by comparison of the Pressure Point to a colour calibration chart (conceptually similar to interpreting Litmus paper), or by using one of several imaging systems that Sensor Products supplies.
Pressure Points is a valuable aid in R and D and QC/QA in electronic packaging.
The technology will determine pressure distribution within a laminating press for multilayer printed circuit boards and when manufacturing hybrid circuits, the sensor film reveals inconsistencies in resistor thickness across large area substrates.
Uniformity problems are clearly revealed during thermocompression in the TAB process and designing heat sinks.
Additional uses include pressure determination during the stack insertion process in transducer manufacturing, core pressure in wound electrolytic capacitors, and the lamination process of ceramic capacitors.
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