| 摘要 |
PROBLEM TO BE SOLVED: To provide a deterioration detector of a lubricant capable of being installed in a bearing or the like by a simple and compact constitution and detecting the deterioration state of the lubricant, and the bearing equipped with the deterioration detector of the lubricant. SOLUTION: The deterioration detector 1 of the lubricant includes an optical system 2, which is constituted so that a light emitting element 3 and a light detecting element 4 are arranged at certain angles and the light emitted from the light emitting element 3 is scattered and reflected by the surface of the lubricant 5 to enter the light detecting element 4; and an estimation means 6. The estimation means 6 estimates the amount of foreign matter contained in the lubricant 5 from the change in the output of the light detecting element 4 caused by the quantity of the light entering the light detecting element 4. COPYRIGHT: (C)2007,JPO&INPIT
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