Capacitive pressure transducer

Details Capacitive pressure transducer Capacitive pressure transducer

1981-12-14

1984-04-10

Griffin, Donald A.

Electricity: electrical systems and devices

Electrostatic capacitors

Variable

73724, H01G 534, G01L 912

Patent

active

044424744

ABSTRACT:
In a capacitive pressure transducer of the type having a flexible diaphragm, a "dimple" like or concave surface is formed therein in order to provide an air gap between the flexible diaphragm and a relatively rigid plate. When pressure is applied to the diaphragm, the diaphragm deflects providing a measurable change in capacitance which varies as a function of the applied pressure.

REFERENCES:
patent: 2250471 (1941-07-01), DeBruin
patent: 3222581 (1965-12-01), Lentant
patent: 3308357 (1967-03-01), Youngblood
patent: 4091683 (1978-05-01), Delatorre
patent: 4092696 (1978-05-01), Boesen
patent: 4332698 (1980-11-01), Hosterman

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