| 摘要 |
PROBLEM TO BE SOLVED: To shorten the time for inspecting a gas sensor and to make inspection work more efficient. SOLUTION: This gas sensor is equipped with a first housing 5, a second housing 6, an intermediate chamber 7, a first vent 8 provided in the first housing 5 so that gas can circulate between the interior of the first housing 5 and the intermediate chamber 7, a second vent 9 provided in the second housing 6 so that gas can circulate between the intermediate chamber 7 and the exterior of the second housing 6, a gas detection element 1 provided in the first housing 5 for reacting to a gas to be detected and to inspection gas, an adsorption layer 3 on the second vent 9 so as to adsorb gases other than the gas to be detected, and an inspection gas lead-in hole 4 provided in the housing 6 so that the inspection gas can be injected into the intermediate chamber 7 from the exterior of the second housing 6 in addition to the second vent 9. The lead-in hole 4 is given directivity so that the inspection gas injected through the lead-in hole 4 is led to the first vent 8. COPYRIGHT: (C)2004,JPO
|
