Infrared type gas analyzer

Details Infrared type gas analyzer Infrared type gas analyzer

1997-08-26

1999-04-13

Westin, Edward P.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

250344, 2502521A, G01N 2161

Patent

active

058941282

ABSTRACT:
An infrared type gas analyzer is formed of a measuring cell for receiving a gas to be measured; an infrared light source for irradiating the gas in the measuring cell; a correlation filter disposed adjacent to the measuring cell; and a sensor for detecting infrared light ejected from the infrared light source and passing through the correlation filter and the measuring cell to analyze the gas in the measuring cell. A correction filter is disposed on a portion of the correlation filter for correction or calibration of the gas analyzer. Thus, the infrared type gas analyzer has a simple structure and can perform a simplified correction without complicated operation.

REFERENCES:
patent: 4746218 (1988-05-01), Lord, III
patent: 4885469 (1989-12-01), Yamagishi et al.
patent: 5060505 (1991-10-01), Tury et al.
patent: 5077469 (1991-12-01), Fabinski et al.
patent: 5206511 (1993-04-01), Apperson et al.

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