发明名称 |
Method and apparatus for diagnosing electrochemical sensor |
摘要 |
A method and apparatus for diagnosing an electrochemical sensor that detects the concentration of a gas are operative for diagnosing whether or not the sensor is in an error state due to a rise in a resistance in the electrolyte of the sensor. Such detection is made on the basis of a current flowing between a sensing electrode and an opposite electrode or a voltage corresponding to the current. A method for diagnosing an electrochemical sensor having a solid or liquid electrolyte between a sensing electrode and an opposite electrode detects the concentration of the gas to be detected on the basis of a current flowing between the sensing electrode and the opposite electrode, or a voltage corresponding to the current. Whether or not the electrochemical sensor is in an error state is diagnosed on the basis of a resistance of the electrolyte between the two electrodes of the electrolyte. |
申请公布号 |
US8736274(B2) |
申请公布日期 |
2014.05.27 |
申请号 |
US201113094374 |
申请日期 |
2011.04.26 |
申请人 |
NONAKA ATSUSHI;OHNISHI HISAO;NONAKA HIDEMASA;NAKAYAMA TOSHIRO;INOUE TOMOHIRO;KATO YUKI;OSAKA GAS CO., LTD.;FIGARO ENGINEERING INC. |
发明人 |
NONAKA ATSUSHI;OHNISHI HISAO;NONAKA HIDEMASA;NAKAYAMA TOSHIRO;INOUE TOMOHIRO;KATO YUKI |
分类号 |
G01R31/08;G01R27/08 |
主分类号 |
G01R31/08 |
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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