| 摘要 |
Provided is a lubricant deterioration sensor which is installed in a machine body and adapted to detect deterioration of lubricant of the machine body. The lubricant deterioration sensor includes a circuit board having a light emitting element and a color light reception element mounted thereon, a gap forming member at which an oil gap for allowing the lubricant to enter therein is formed, a supporting member which supports the circuit board and the gap forming member, a fixing member which is configured to be fixed to the machine body, and a shock absorbing member which is disposed between the supporting member and the fixing member and absorbs shocks. The gap forming member transmits the light emitted from the light emitting element. The oil gap is disposed on an optical path from the light emitting element to the color light reception element. The supporting member is provided with a substrate attaching portion having the circuit board attached thereon. At least a part of the shock absorbing member is disposed in a peripheral space of the substrate attaching portion which is formed by surrounding the substrate attaching portion between the supporting member and the fixing member. |
