Gas analysis sensor for measuring concentration of gas constitue

Details Gas analysis sensor for measuring concentration of gas constitue Gas analysis sensor for measuring concentration of gas constitue

1982-03-04

1983-12-06

Kaplan, G. L.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

73 23, 73708, G01N 2754

Patent

active

044192118

ABSTRACT:
In an instrument with a sensor for gas analysis which, based on the principle underlying its measurement, indicates the partial pressure of the gas constituent to be measured, the indication of the change in the partial pressure of the gas constituent is affected by changes in the atmospheric pressure. Such instruments must be calibrated at mean sea level and adjusted for changes in height at the measuring site.
In order to eliminate the need for adjustment or recalibration, there is included in the instrument a pressure-sensitive module to compensate for the effects of the atmospheric pressure on the sensor. The module compensates the measured value directly or by means of a microprocessor with regard to the prevailing pressure conditions.

REFERENCES:
patent: 3663409 (1972-05-01), Greene
patent: 3685346 (1972-08-01), Molloy

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