Differential pressure transducer

Details Differential pressure transducer Differential pressure transducer

1985-07-01

1987-06-02

Goldberg, E. A.

Electrical resistors

Resistance value responsive to a condition

Fluid- or gas pressure-actuated

338 42, H01L 1010

Patent

active

046707336

ABSTRACT:
In a differential pressure transducer having isolation diaphragms on opposite sides of a sensing diaphragm, the isolation diaphragms are made highly compliant, are radially prestressed and are bowed outwardly relative to closely spaced backup surfaces by oil pressure. Using very small interior cavities and a substantially stiffer sensing diaphragm differential process pressures induce linear deflection of the sensing diaphragm.

REFERENCES:
patent: 4080830 (1978-03-01), Eckstein et al.
patent: 4158311 (1979-06-01), Yasuhara et al.
patent: 4388833 (1983-06-01), Kuwayama
patent: 4458537 (1984-07-01), Bell et al.
patent: 4527428 (1985-07-01), Shimada et al.
patent: 4572000 (1986-02-01), Kooiman
patent: 4578735 (1986-03-01), Knecht et al.

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