Force measuring device

Details Force measuring device Force measuring device

1987-08-05

1989-05-02

Goldberg, E. A.

Electrical resistors

Strain gauge type

338 4, 338 5, 338 32H, G01L 122

Patent

active

048272400

ABSTRACT:
A force measuring device includes a rigid base plate and a first diaphragm symmetrical about a central normal axis and arranged in spaced parallel relationship to the base plate. An elastic connection between the base plate and a peripheral rim of said first diaphragm hermetically closes a cavity formed between the base plate and first diaphragm. A first projection is formed, for force introduction to the device, on an outer surface of the first diaphragm and extends along the central normal axis; a second projection extends from an inner surface along the central normal axis toward the base plate. A displacement sensor is arranged in the cavity between the base plate and second projection for sensing any displacement therebetween upon force application to the device, to generate an electrical signal indicative of the force applied.

REFERENCES:
patent: 4340877 (1982-07-01), Herden

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