| 摘要 |
PROBLEM TO BE SOLVED: To provide a sensor for oil feeding device capable of acquiring various information regarding an oil feeding device with a simple structure and over a wide range.SOLUTION: The sensor for oil feeding device is characterized in that a light guide (e.g., a prism 1) made of a light-transmitting material is provided for an oil feeding system (e.g., an oil feeding piping 2, a pump, etc), an irradiation device (e.g., an optical fiber 3 connected to light source) and a light-receiving device 4 which receives light reflected on a boundary surface F12 between oil flowing through the oil feeding system 2 and the light guide are provided for the light guide 1, and optical fibers PF21 to PF25 are connected to the light-receiving device 4. |
