Oxygen concentration monitor using galvanic cell type oxygen sen

Details Oxygen concentration monitor using galvanic cell type oxygen sen Oxygen concentration monitor using galvanic cell type oxygen sen

1988-03-02

1990-04-03

Orsino, Joseph A.

Communications: electrical

Condition responsive indicating system

Specific condition

73 1G, 73 23, 340633, G08B 1710

Patent

active

049144243

ABSTRACT:
The invention discloses an oxygen concentration monitor using a Galvanic cell type oxygen sensor. An automatic calibration circuit always calibrates the maximum output of the sensor as the value corresponding to an oxygen concentration of 21%, based on the fact that the oxygen concentration in a fresh air never exceeds 21%.

REFERENCES:
patent: 4431004 (1984-02-01), Bessman
patent: 4495051 (1985-01-01), Fujita et al.
patent: 4550726 (1985-11-01), McEwen
patent: 4602653 (1986-07-01), Ruiz-Vela

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