| 摘要 |
PROBLEM TO BE SOLVED: To provide a gas sensor capable of improving detection accuracy of specific gas component concentration.SOLUTION: A gas sensor 1 includes a solid electrolyte 2, a gas chamber 101, a reference gas chamber, a pump cell, a monitor cell, and a sensor cell. At a position where a pump electrode 21, a monitor electrode 22 and a sensor electrode 23 are provided in the solid electrolyte 2, in a width direction W orthogonal to a flow direction F of gas G, a space width W0 of the gas chamber 101 is made fixed. In the flow direction F, a distance B1 from the downstream side end surface of the pump electrode 21 to the upstream side end surface monitor electrode 22 is identical to a distance B2 from the downstream side end surface of the pump electrode 21 to the upstream side end surface of the sensor electrode 23.SELECTED DRAWING: Figure 3 |
