Pressure sensor which can compensate for temperature variation

Details Pressure sensor which can compensate for temperature variation Pressure sensor which can compensate for temperature variation

1979-01-09

1980-06-10

Woodiel, Donald O.

Measuring and testing

Fluid pressure gauge

With pressure and/or temperature compensation

73728, G01L 1904

Patent

active

042066557

ABSTRACT:
A pressure sensor comprising pressure responsive means wherein its location is shifted in response to variations of a pressure to be detected, and frequency variation means for varying an oscillation frequency of an oscillator in response to a shift movement of the pressure responsive means. The pressure responsive means and the frequency variation means are mounted on a single supporting table. The single supporting table shows a thermal expansion substantially identical with the total thermal expansion of the pressure responsive means and the frequency variation means, thereby stabilizing a pressure detection.

REFERENCES:
patent: 3242738 (1966-03-01), Bellier
patent: 3543585 (1970-12-01), Brown
patent: 4074576 (1978-02-01), Bryzzhev et al.

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