发明名称 |
Composite gas sensor |
摘要 |
A composite gas sensor comprises a pump cell, a NOx sensor cell and an oxygen sensor cell. The NOx sensor cell is connected to a first ammeter and a constant power source to measure the NOx concentration of a sample gas. The pump cell is connected to a second ammeter and a variable power source to measure an air-fuel ratio of the sample gas. The oxygen sensor cell is connected to a voltmeter. A controller adjusts the variable power source to produce a constant value from the voltmeter.
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申请公布号 |
US2002038761(A1) |
申请公布日期 |
2002.04.04 |
申请号 |
US20010006372 |
申请日期 |
2001.12.10 |
申请人 |
SUGIYAMA TOMIO;MIWA NAOTO;SHIBATA MASAHIRO;SANO HIROMI;TANAKA AKIO;SHIBATA MIDORI |
发明人 |
SUGIYAMA TOMIO;MIWA NAOTO;SHIBATA MASAHIRO;SANO HIROMI;TANAKA AKIO;SHIBATA MIDORI |
分类号 |
G01N27/416;G01N27/419;(IPC1-7):G01N27/419 |
主分类号 |
G01N27/416 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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