- 专利标题： Gas detecting device with self-diagnosis for electrochemical gas sensor
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申请号： US11041291申请日： 2005-01-25
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公开(公告)号： US07090755B2公开(公告)日： 2006-08-15
- 发明人: Tomohiro Inoue , Yuki Fujimori
- 申请人： Tomohiro Inoue , Yuki Fujimori
- 申请人地址： JP Osaka
- 专利权人： Figaro Engineering Inc.
- 当前专利权人： Figaro Engineering Inc.
- 当前专利权人地址： JP Osaka
- 代理机构： Rothwell, Figg, Ernst & Manbeck, P.C.
- 优先权： JP2004-313829 20041028
- 主分类号： G01N27/404
- IPC分类号： G01N27/404
摘要：
A test signal is applied in parallel with an electrochemical gas sensor for about ten seconds, while an amplifying circuit is turned off. After turning off the test signal, the amplifying circuit is turned on. If the gas sensor outputs an waveform of a predetermined shape in a predetermined period after the turning-on, the gas sensor will be judged to be normal.
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