Polymer strain gauge measures medical and automotive applications

Designed for industrial, medical, automotive, military and consumer electronics applications, the P-DMS polymer strain gauge is based on Hoffmann + Krippner’s sensor paste technology, printed onto a PCB.

A small deformation to the paste generates a change of its electrical resistance, generating an analogue signal to enable measurement, input and control to a range of applications. No moving parts are required. The strain gage can be directly printed on the application’s control board, it does not need to be connected by wires. This enables compact and affordable designs, claims the company, as well as eliminating the failure points of wire failure and corrosion.  It also eliminates electrical sparking as the key contacts come together.

Applications include vending machines, automotive touch screens and function activators, musical instruments such as a piano keys and electric guitars, control switches for DJ audio mixing gear, inside shoes to measure pressure distribution, ‘silent’ keyboards, inventory control for grocery store shelves and, as well as hazardous area applications where a spark from keys closing an electrical circuit could set off a fire or an explosion.

The gauge is available in a variety of customised sizes and shapes. The company says that design engineers and developers can control costs and shorten development times by working directly with it to integrate the gauge into early stages of development. In-house development, design and manufacturing is available to customise the design and specifications to customer requirements.

http://www.hoffmann-krippner.com/polymer-strain-gage.html

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