Measuring and testing – Fluid pressure gauge – Diaphragm
Patent
1983-08-12
1985-06-18
Woodiel, Donald O.
Measuring and testing
Fluid pressure gauge
Diaphragm
73718, 361283, G01L 708, G01L 912, H01G 700
Patent
active
045234744
ABSTRACT:
A capacitive sensor for use in the measurement of pressure or pressure changes of a fluid medium which sensor maintains the capacitor electrodes in a substantially parallel relationship. Maintenance of this parallel relationship provides a substantially linear capacitive output over a given range without further electronic buffering or calibration. The capacitive signal may be enhanced or amplified by use of multiple parallel plates which are movable simultaneously with deflection of the flexible diaphragm.
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patent: 3859575 (1975-01-01), Lee et al.
patent: 3952234 (1976-04-01), Birchall
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patent: 4089036 (1978-05-01), Geronime
patent: 4125027 (1978-11-01), Clark
patent: 4295376 (1981-10-01), Bell
patent: 4434451 (1984-02-01), Delatorrie
Browne Vance D.
Kochanek George E.
Borg-Warner Corporation
Gregorczyk Florian S.
Woodiel Donald O.
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