Differential pressure to electric current transducer employing a

Details Differential pressure to electric current transducer employing a Differential pressure to electric current transducer employing a

1978-09-07

1980-07-15

Woodiel, Donald O.

Measuring and testing

Fluid pressure gauge

Diaphragm

338 4, 338 42, G01L 906

Patent

active

042122090

ABSTRACT:
In a differential pressure to electric current transducer, a short sapphire slab carries a strain sensitive resistive pattern. The sapphire slab is an element of a much larger beam as the beam moves to change the stress of the other surfaces of the sapphire slab and varies the resistance of the silicon resistive pattern to produce an electric current signal indicative of the differential pressure.

REFERENCES:
patent: 3277698 (1966-10-01), Mason
patent: 3417322 (1968-12-01), Fenner
patent: 3780588 (1973-12-01), Whitehead et al.
patent: 3970982 (1976-07-01), Kurtz et al.

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