| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a gas sensor that realizes high-accuracy measurement by having high responsiveness and also having strength enough to prevent a sensor element from being broken due to stress generated when assembled and used.SOLUTION: A gas sensor includes a sensor element 101 that is constituted using an oxygen-ion-conducting solid electrolyte as a main component, and detects a prescribed gas component included in measured gas. The sensor element 101 comprises: an internal gap 20 that introduces the measured gas from an external space; and a pump cell that includes both a first electrode 22 formed on a surface of the internal gap and a second electrode 23 formed in a space different from the internal gap and is provided in a manner capable of pumping out oxygen in the internal gap by applying prescribed voltage between the first electrode 22 and the second electrode 23. The thickness of the internal gap is 50μm or more but 180μm or less.</p> |
