Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Means for analyzing gas sample
Patent
1992-09-09
1993-12-14
Warden, Robert J.
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Means for analyzing gas sample
73 3101, 73 2321, 73 1G, 73 2331, 422 98, G01N 2700
Patent
active
052700097
ABSTRACT:
Relation of the degree of interference to interference concentration is previously stored with respect to at least one interference gas influencing an oxygen indicated value of a sample gas, so that interference corresponding to interference gas concentration of the sample gas is corrected on the basis of the stored relation when oxygen concentration is calculated from a detection signal of an oxygen sensor and outputted. Concentration of the interference gas, with respect to which the relation of the degree of interference is stored, is manually inputted in measurement, or previously set. When the concentration of the interference gas is previously set, such concentration is made changeable by manual input. Thus, even if the sample gas contains an interference gas in high concentration as in the case of an exhaust gas containing highly concentrated CO.sub.2 gas, it is possible to accurately measure oxygen concentration of the sample gas.
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Kozakura Masaru
Nakamori Akioki
Klima William L.
Shimadzu Corporation
Tran Hien
Warden Robert J.
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