Title:
プロトン導電体ガスセンサの自己診断方法とガス検出装置
Document Type and Number:
Japanese Patent JP4194085
Kind Code:
B2
Abstract:
An electrochemical gas sensor is self-diagnosed on the basis of an output waveform that is generated when a power source of said gas sensor is turned on after said power source has been turned off for a short time and an output waveform that is generated when said power source is turned on after said power source has been turned off for a long time. In a normal gas sensor, when the power source is turned on after the power source has been turned off for the short time, a bottom will be generated in the potential of the sensing electrode side, and when the power source is turned on after the power source has been turned off for the long time, a peak will be generated in the potential of the sensing electrode side. A self-diagnosis of the electrochemical gas sensor can be done without pulse power source for self-diagnosis, and the dead time from self-diagnosis until start of detection can be shortened.
Inventors:
Tomohiro Inoue
Application Number:
JP2003073172A
Publication Date:
December 10, 2008
Filing Date:
March 18, 2003
Export Citation:
Assignee:
Figaro Giken Co., Ltd.
International Classes:
G01N27/26; G01N27/406; C12P13/02; G01N27/416; G01N27/417; G01N27/49
Domestic Patent References:
| JP11083792A | ||||
| JP5142194A | ||||
| JP4190154A | ||||
| JP1305349A |
Attorney, Agent or Firm:
Akira Shioiri
Mika with salt
Mika with salt