Measuring and testing – Gas analysis – Gas chromatography
Patent
1985-08-05
1987-04-28
Kreitman, Stephen A.
Measuring and testing
Gas analysis
Gas chromatography
338 34, G01N 2712
Patent
active
046604073
ABSTRACT:
A gas sensor has a ceramic substrate carrying a first ceramic layer formed thereon and a second ceramic layer formed on the first layer, the two layers having successive setbacks from one edge of the substrate so as to form a staircase-like edge structure, and a gas-sensitive layer is formed on the staircase-like edge portion of said substrate, height of said gas-sensitive layer above the substrate being less than the thickness of the first ceramic layer.
REFERENCES:
patent: 4414531 (1983-11-01), Novak
Kuroki Yoshiaki
Matsuura Toshitaka
Nakano Akira
Takami Akio
Kreitman Stephen A.
NGK Spark Plug Co. Ltd.
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