Quartz barometer

Details Quartz barometer Quartz barometer

1985-10-02

1987-01-27

Woodiel, Donald O.

Measuring and testing

Barometer

73702, 73708, 73754, 374117, 374143, G01L 1100

Patent

active

046386645

ABSTRACT:
In a quartz barometer untilizing the temperature dependence of the resistance of a quartz oscillator at resonance, the present invention is directed to provide a circuit which compensates for the temperature change of the resistance at resonance by connecting a temperature-dependent resistor in series with a quartz oscillator thereby enabling said quartz barometer to measure gas pressure much more accurately.

REFERENCES:
patent: 4015208 (1977-03-01), Hammer et al.
patent: 4558248 (1985-12-01), Valentin

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