| 摘要 |
<p>Provided is a lubricating oil degradation sensor that is installed in a machine body and that is for detecting the degradation of a lubricating oil for said machine body. This lubricating oil degradation sensor comprises: a body part constructed so as to be fixed to the machine body; and a replaceable unit that is replaceable with respect to the body part. The replaceable unit includes a light-emitting element and a color light-receiving element. An oil gap is formed in a gap-forming member provided to said body part, and is arranged in the optical path from the light-emitting element to the color light-receiving element. The body part has a first fitting part, and the replaceable unit has a second fitting part. The first fitting part and the second fitting part are fitted together in a state such that the positional relationship between the gap-forming member and the light-emitting element and the color light-receiving element is in a predetermined positional relationship.</p> |
