Improvement of humidity dependence in gas sensor based on SnO2

被引：0
|
作者：
Fukui, K [1 ]
Katsuki, A [1 ]
机构：
[1] New Cosmos Elect Co Ltd, Yodogawa Ku, Osaka 5320036, Japan
来源：
TECHNICAL DIGEST OF THE SEVENTH INTERNATIONAL MEETING ON CHEMICAL SENSORS | 1998年
关键词：
D O I：
暂无
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
A tin oxide based gas sensor for detecting CH4 and i-C4H10 in a low gas concentration (200ppm) was developed on the basis of a "Hot Wire Type" gas sensor, which was sintered in a bead (0.55 mm phi) to cover a platinum wire(0.020 mm phi) coil. The effect of oxides of Co, Cr, La or Ce on humidity dependence of tin oxide was investigated. The oxides of Co and Cr gave a prominent stability for the sensor output to CH4 and i-C4H10 under the humidity change in outdoor through a year.
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页码：404 / 406
页数：3
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