| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical sensor system capable of measuring a physical quantity of an object to be measured by using a value depending on only the reflectivity of an optical sensor, without being affected by the intensity of light emitted by a light source/light detecting unit and the reflectivity values of optical connectors in an optical transmission system. SOLUTION: The optical sensor system includes: the optical sensor 12, whose reflectivity changes in response to a change in the physical quantity of the object to be measured; the light source/light detecting unit 11, which transmits incidence light to the optical sensor 12 via the optical transmission system including the optical connector 14, and receive returned light containing light reflected by the optical sensor 12 via the optical transmission system, including the optical connector 14; and a reflecting element 15, which is connected between the optical sensor 12 and the optical connector 14, transmits a portion of the incidence light and reflects the remaining potion of the incidence light. The light source/light detecting unit 11 detects the returned light of the light reflected by the optical sensor 12 and the returned light of the light reflected by the reflecting element 15, and measures the physical quantity of the object to be measured, based on the value obtained by dividing the returned light of the light reflected by the optical sensor 12 by the returned light of the light reflected by the reflecting element 15. COPYRIGHT: (C)2009,JPO&INPIT
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