Capacitive differential pressure transducer

Details Capacitive differential pressure transducer Capacitive differential pressure transducer

1979-01-24

1983-09-13

Woodiel, Donald O.

Measuring and testing

Fluid pressure gauge

Diaphragm

73706, 361283, G01L 912

Patent

active

044035136

ABSTRACT:
A capacitive differential pressure transducer for sensing the difference in pressure between at least two fluids includes first and second halves of a housing separated by a diaphragm which acts as a common capacitive plate to the capacitive differential pressure transducer with each housing half being identical and containing an interior chamber which is filled with a force transmitting fluid, a sensing capacitive plate located within the chamber and cooperating with the common capacitive plate, a fastening mechanism for holding the sensing capacitive plate tight against its housing half, sealing devices for sealing in the force transmitting fluid and terminals for connecting the common capacitive plate and the sensing capacitive plate to a sensing circuit.

REFERENCES:
patent: 2753515 (1956-07-01), Rickner
patent: 2800796 (1957-07-01), Westcott et al.
patent: 2907320 (1959-10-01), Weese et al.
patent: 3000215 (1961-09-01), Atanasoff et al.
patent: 3354721 (1967-11-01), Fiske
patent: 3995493 (1976-12-01), Nishihara
patent: 4120206 (1978-10-01), Rud

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