Self-calibrating differential condition sensor

Details Self-calibrating differential condition sensor Self-calibrating differential condition sensor

1985-08-09

1986-03-18

Woodiel, Donald O.

Measuring and testing

Instrument proving or calibrating

Volume of flow, speed of flow, volume rate of flow, or mass...

73714, 73756, 128748, 364558, 364571, G01L 2700

Patent

active

045760357

ABSTRACT:
A self calibrating differential pressure sensor having a pair of pressure transducers connected in fluid series with two on/off valves. The system can be calibrated to eliminate base line or zero shift and can also be used to measure other variable conditions, such as differential voltage between two voltage points or differential chemical concentrations between two concentration points.

REFERENCES:
patent: 1381139 (1921-06-01), Smoot
patent: 3313157 (1967-04-01), Gilson
patent: 3585841 (1971-06-01), Brandau
patent: 4339943 (1982-07-01), Hedrick
patent: 4384925 (1983-05-01), Stetter et al.

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