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No more wires

20th June 2016

Posted By Paul Boughton


Hoffmann + Krippner has announced that its new P-DMS Polymer Strain Gauge is now shipping. This compact and cost-effective solution for measuring pressure is based on Hoffmann + Krippner’s industry leading and patented sensor paste technology printed onto a PCB board.

Extremely sensitive to slight pressures, 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 wide range of applications.  Requiring no moving parts, this simple device can be very accurate and long lasting. As 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, as well as eliminating the failure points of wire failure and corrosion.  It also eliminates electrical sparking as the key contacts come together.

Interesting applications include musical instruments such as a piano keys and electric guitars, control switches for DJ audio mixing gear, inside shoes to measure pressure distribution as someone stands or walks, for use in “silent” keyboards (no key clacking), inventory control for grocery store shelves and vending machines, automotive touch screens and function activators, as well as hazardous area applications where a tiny spark from keys closing an electrical circuit could set off a fire or an explosion. 

The new P-DMS Strain Gauge is available in wide variety of customised sizes and shapes.









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