| 摘要 |
PROBLEM TO BE SOLVED: To obtain a gas sensor capable of detecting an accurate concentration of a carbon monoxide even when a zero point correction is not executed for a measured potential difference. SOLUTION: The gas sensor comprises an insulator 4, a metal film 1, an insulating film 8, a solid electrolyte film 1, a heater film 5, a pair of electrode films 2a, 2b, and a catalyst 3 in such a manner that a sheet-like metal film 1 having good thermal conductivity is provided under the film 1. Thus, a heat can be uniformly transferred, and even when a zero point correction is not executed for the measured potential difference, a concentration of a carbon monoxide can be accurately obtained from the difference between the films 2a ad 2b. |
