Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Means for analyzing gas sample
Patent
1994-01-05
1995-07-04
Housel, James C.
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Means for analyzing gas sample
25033912, 25033913, 25033906, 250343, 356436, 356437, 422 8209, G01N 2105
Patent
active
054298059
ABSTRACT:
A non-dispersive infrared gas analyzer, with improved linearity in output concentration signal especially in measuring gas species of high concentration, includes a measuring cell into which a gas to be measured is fed, a non-selective infrared radiation sensor disposed on one side of the measuring cell, an optical band-pass filter disposed between the measuring cell and the infrared radiation sensor, and a nonselective infrared radiation source, disposed on the other side of the measuring cell and having an infrared radiation transmission window, wherein the radiation source further includes a gas filled therein at a predetermined partial pressure and the filled gas has at least a common partial molecular structure with the gas to be measured.
REFERENCES:
patent: 3851176 (1974-11-01), Jeunehomme et al.
patent: 3860344 (1975-01-01), Garfunkle
patent: 4176963 (1979-12-01), Fabinski et al.
patent: 4271124 (1981-06-01), Speeter
patent: 4794255 (1988-12-01), Miyatake et al.
patent: 5155545 (1992-10-01), Rinke
Akao Kozo
Ohishi Mituru
Okuyama Hitoshi
Taniyama Mitsuo
Uno Masahiro
Fuji Electric & Co., Ltd.
Housel James C.
Soderquist Arlen
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