| 摘要 |
The optical sensor (100) has test detector mounted on rotor (40) rotated along the rotation axis, which is arranged in inner surface of the sensor. The test detector is oriented towards regions of partitioning screen (66) through which the emergent light pulses and reflected light pulses pass. A test light source (54) supplying emergent light pulses, is mounted on the rotor. A reflector element (80) to which the test light is directed, is arranged outside housing (60). The test light reflected by reflector element is detected from the test detector. |
