| 摘要 |
PROBLEM TO BE SOLVED: To provide a gas sensor processing device capable of properly detect the degree of deterioration of a detection element of the gas sensor.SOLUTION: A gas sensor processing device 1 processes output of a gas sensor 2 having a detection element 3 which consists of a solid electrolyte, has a pair of electrodes 3P, 3N, and detects the gas concentration of a specific gas. The gas sensor processing device 1 is provided with: voltage shift means 11, 19, S1071 for shifting a detection element voltage VE generated between the electrodes 3P, 3N of the detection element 3 from a pre-shift voltage VE1 to a post-shift voltage VE2; restoration means 11, 19, S1072 for restoring the detection element voltage VE from the post-shift voltage to the pre-shift voltage following termination of a voltage shift period TS by the voltage shift means; and deterioration index detection means S106 to S107 for detecting a deterioration index ID indicating the degree of deterioration of the detection element 3 on the basis of change in voltage generated during a restoration period TK by the restoration means. |
