Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Means for analyzing gas sample
Patent
1984-03-27
1986-04-08
Turk, Arnold
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Means for analyzing gas sample
73 23, 204192S, 338 34, 422 98, G01N 2712
Patent
active
045812047
ABSTRACT:
A thin film gas sensor for the detection and measurement of gaseous hydrocarbon contaminants having double and triple bonds in air by means of semiconductive tungsten oxide. The invention also relates to a method for manufacturing such a thin film gas sensor. The substrate for the tungsten oxide thin film consists of a lithium niobate monocrystal preferably oriented in the (001) direction. The gas sensor responds very sensitively to acetylene, responds less sensitively to hydrocarbons having double bonds, and exhibits practically no response to saturated hydrocarbons.
REFERENCES:
patent: 4197089 (1980-04-01), Willis et al.
patent: 4314996 (1982-02-01), Sekido et al.
"Current Topics in Materials Science", vol. 1, (1978), pp. 496-508.
Siemens Aktiengesellschaft
Turk Arnold
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