Pressure sensor

Details Pressure sensor Pressure sensor

1990-10-31

1992-04-28

Woodiel, Donald O.

Measuring and testing

Fluid pressure gauge

With pressure and/or temperature compensation

73721, 73727, 338 4, G01L 906, G01L 1904

Patent

active

051077108

ABSTRACT:
A pressure sensor (38) is proposed with strain gauges (18, 20, 22, 24) such as thick-film resistance strain gauges arranged on a diaphragm, these gauges being preferably connected to form a Wheatstone bridge, where branches of the bridge circuit have compensating resistors (26, 28, 30, 32). The compensating resistors are arranged outside the active area (17) of the diaphragm.

REFERENCES:
patent: 3341794 (1967-09-01), Stedman
patent: 4333349 (1982-06-01), Mallon et al.
patent: 4530244 (1985-07-01), Starr
patent: 4622856 (1986-11-01), Binder et al.
patent: 4798093 (1989-01-01), Kenoun

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