Gas sensor, method of measuring gas component by utilizing gas s

Details Gas sensor, method of measuring gas component by utilizing gas s Gas sensor, method of measuring gas component by utilizing gas s

1997-12-08

1999-09-07

Larkin, Daniel S.

Measuring and testing

Gas analysis

Gas of combustion

73 3105, 204424, 204427, 422 94, G01N 2700

Patent

active

059489669

ABSTRACT:
A gas sensor for measuring a specific gas component, especially hydrocarbons, in a gas to be measured, including a hydrocarbon prevention filter preferably made of zeolite. An oxygen concentration difference between (1) an oxygen concentration in a gas to be measured from which hydrocarbons are removed by the hydrocarbon prevention filter and further combustible components are removed and (2) a known oxygen concentration or an oxygen concentration in a gas from which only combustible components are removed, is calculated. Once an oxygen amount necessary for a combustion of hydrocarbons is calculated, it is possible to measure a hydrocarbon concentration in a gas to be measured on the basis of the thus calculated oxygen amount.

REFERENCES:
patent: 5143696 (1992-09-01), Haas et al.

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