Percent oxygen gauge

Details Percent oxygen gauge Percent oxygen gauge

1982-06-04

1984-07-31

Kreitman, Stephen A.

Measuring and testing

Gas analysis

Gas chromatography

204408, 340632, G01N 2754

Patent

active

044622465

ABSTRACT:
A gauge measuring percent oxygen by simultaneously measuring oxygen partial pressure and ambient atmospheric pressure with solid state transducers. Two electrical signals obtained from the transducers are combined in a summing amplifier in accord with an empirically determined relation to yield a percent oxygen value which is displayed. The gauge has provisions for using an internal oxygen partial pressure transducer or an external probe connected to the gauge by a cable.

REFERENCES:
patent: 3266293 (1966-08-01), Hubner
patent: 3427862 (1969-02-01), Hubner
patent: 3562521 (1971-02-01), Vanderschmidt et al.
patent: 3685346 (1972-08-01), Molloy
patent: 4189725 (1980-02-01), Rowland
patent: 4297689 (1981-10-01), Shaw et al.
patent: 4419211 (1983-12-01), Brauer

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