Pressure compensated differential pressure sensor and method

Details Pressure compensated differential pressure sensor and method Pressure compensated differential pressure sensor and method

1983-03-24

1986-07-01

Gruber, Felix D.

Boots, shoes, and leggings

73708, 73766, 364571, G01C 2500, G01N 700, G01L 2500

Patent

active

045983810

ABSTRACT:
A differential pressure sensor senses a difference in pressure between a first input (low) pressure or "reference pressure" and a second input (high) pressure and provides a differential sensor signal representative of the difference in pressure. The reference pressure is sensed by a reference pressure sensor which provides a reference signal representative of the reference pressure. The differential sensor signal and the reference signal are provided to a correction circuit. The correction circuit, which is preferably a digital computer, adjusts the reference signal and provides an improved output signal as a function of the differential sensor signal and the adjusted reference signal.

REFERENCES:
patent: 3108183 (1963-10-01), Ganley et al.
patent: 3532869 (1970-10-01), Talmo
patent: 4399515 (1983-08-01), Gross
patent: 4418392 (1983-11-01), Hata
patent: 4468968 (1984-09-01), Kee
patent: 4481596 (1984-11-01), Townzen

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