Performance Evaluation according to Optical Power of Laser Diode of Optical Fiber Displacement Sensor for Monitoring High Speed Spindle.

고속주축 모니터링용 광파이버 변위센서의 레이저 다이오드 출력에 따른 성능평가

This paper is to develop an optical ruer displacement sensor for monitoring high speed spindle. Proper magnitude of optical power as well as amplification of output signal are necessary to improve sensitivity of the sensor. In this paper, to meet the need of improvement of the sensor resolution, we choose proper optical power and amplification level through speculating on optical power of a laser diode.