Sensor for a capacitance pressure gauge

Details Sensor for a capacitance pressure gauge Sensor for a capacitance pressure gauge

1991-09-25

1993-11-02

Woodiel, Donald O.

Measuring and testing

Fluid pressure gauge

Diaphragm

29 7541, 73718, 3612834, G01L 708, G01L 912

Patent

active

052575420

ABSTRACT:
A sensor for a capacitance pressure gauge having a diaphragm and a base is formed with a series of thin metallic electrode sections formed on the inside of the diaphragm and base. Electrical connection is made to the base electrode sections through the base and one or two pairs of series connected capacitances are formed with the diaphragm electrodes. No direct electrical connection needs to be made to the diaphragm.

REFERENCES:
patent: 4422335 (1983-12-01), Ohnesorge et al.
patent: 4711130 (1987-12-01), Glas et al.
patent: 4864463 (1989-09-01), Shkedi et al.
patent: 5001595 (1991-03-01), Dittrich et al.
patent: 5050034 (1991-09-01), Hegner et al.
Elektrisch Druckmessung, Schaltungen zur kapazitiven Druckmessun by Otto Muller, date Jan. 1940.

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