Pressure sensor

Details Pressure sensor Pressure sensor

1988-08-22

1990-04-10

Reynolds, Bruce A.

Electrical resistors

Strain gauge type

Fluid- or gas pressure-actuated

338 42, G01L 122

Patent

active

049164260

ABSTRACT:
A pressure sensor having a ceramic pressure sensing element including a bottom wall serving as a diaphragm, and a tubular wall which extends from a periphery of the bottom wall and cooperates with the bottom wall to define a cavity. The diaphragm has resistors formed thereon. The resistors are electrically connected to an external electric device by electrically conductive members. The sensing element is held in a housing by a retainer member such that one end of the retainer member is aligned with an end face of the tubular wall remote from the bottom wall. A biasing member is provided for biasing the retainer member toward the ceramic pressure sensing element, to exert a retaining force to the sensing element.

REFERENCES:
patent: 4068206 (1978-01-01), Popp
patent: 4311980 (1982-01-01), Prudenziati
patent: 4431981 (1984-02-01), Fuller et al.
SAE Paper No. 860474 "High Pressure Thick Film Monolithic Sensors", by Roberto Dell'Acqua and Giuseppe Dell'Orto-Mar. 20, 1986.

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