| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a gas sensor element excellent in premature activity and mechanical strength. <P>SOLUTION: The gas sensor element 1 has a solid electrolyte plate 11 and the electrode 161 on a side of gas to be measured and reference electrode 171 both of which are provide on the solid electrolyte plate 11 and also has a sensing part 16 formed by opposing the electrode 161 on a side of gas to be measured and the reference electrode 171 through the solid electrolyte plate 11 and a heater 19 composed of the heater substrate 190 integrally provided to the solid electrolyte plate 11 and the heat generating part 191 provided on the heater substrate 190. The relation of S2/S1≤0.9 is formed between the area S1 of the heat generating region on the heater substrate 190 having the heat generating part 191 and the area S2 of the sensor region on the solid electrolyte plate 11 partitioned in a width direction by one end part and the other end part in the longitudinal direction of the gas sensor element 1 of the sensing part 16. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
