Patent ID: 9176093
Filing Date: 2015-11-03
Classification: G01N

Abstract:
1. A gas sensor, comprising: a gas sensor element including a plate-shaped detecting element extending in a longitudinal direction, a sensing portion, disposed in a leading end portion in the longitudinal direction of the detecting element and detecting a specified gas in a gas to be measured, and a plurality of electrode pads disposed on an outer surface in a rear end portion in the longitudinal direction of the detecting element, at least one of the electrode pads outputting a detection signal from the sensing portion to an external circuit; and a housing that encloses the periphery of the gas sensor element, wherein the gas sensor element has at least one chamfered portion linking a first outer surface and a second outer surface of the detecting element, the first outer surface extending in the longitudinal direction and having the electrode pads disposed thereon, and the second outer surface extending in the longitudinal direction and intersecting the first outer surface, said chamfered portion including a rear end chamfered portion making a first chamfer angle with a rear end portion of the first outer surface and a leading end chamfered portion making a second chamfer angle with a leading end portion of the first outer surface, said first chamfer angle being larger than said second chamfer angle, and said second chamfer angle being greater than zero, and the electrode pads are arranged adjacent to the chamfered portions.