Thermocouple vacuum gauge

Details Thermocouple vacuum gauge Thermocouple vacuum gauge

1985-07-31

1987-01-06

Woodiel, Donald O.

Measuring and testing

Fluid pressure gauge

Electrical

374164, 374179, G01L 2114

Patent

active

046337172

ABSTRACT:
A thermocouple pressure gauging system for measuring partial vacuum is provided which uses AC current to heat the thermocouple to constant temperature. A signal proportional to pressure is derived from the AC current needed to heat to constant temperature.

REFERENCES:
patent: 3397579 (1968-08-01), Harvey
patent: 4579002 (1986-04-01), Zettler

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