| 摘要 |
PROBLEM TO BE SOLVED: To provide a constant potential electrolytic gas sensor with a simple structure capable of preventing a leak of an electrolyte caused by large pressure variations inside and outside an electrolysis vessel. SOLUTION: In this constant potential electrolytic gas sensor, a working electrode 103 serving as a gas electrode for gas detection and chemically reacting a gas to be detected, a counter electrode 104 standing opposite to the working electrode 103, and a reference electrode 105 for controlling the potential of the working electrode 103 are provided so as to face on an electrolyte storage part in the electrolysis vessel 102 stored with the electrolyte 101, a gas introduction part 111 is provided for introducing the gas to be detected to the working electrode 103, and an output circuit for providing a gas detection output is electrically connected to the respective electrodes. A gas storage part 106 is provided in the electrolysis vessel 102 while a vent part 112 is provided for ventilatably connecting the storage part 106 to the introduction part 111. |
