| 摘要 |
PROBLEM TO BE SOLVED: To provide a constant potential electrolysis type oxygen gas sensor capable of detecting a prescribed gas with high reliability.SOLUTION: In a constant potential electrolysis type oxygen gas sensor 10, an action electrode 21 and a counter electrode 22 are disposed interposing electrolytic solution L, inside a casing 11. The action electrode is electrically connected with one end of an action electrode lead member 31a, the other end of which is drawn outside the casing. The counter electrode is electrically connected with one end of a counter electrode lead member 31b, the other end of which is drawn outside the casing. The action electrode is formed of metal black selected from platinum black and gold black. The action electrode lead member is formed of a metal selected from tantalum, gold, tungsten and niobium. |
