EFFECTS OF VARYING SOURCE POWER ON SENSOR PERFORMANCE IN SELF-REFERENCED FIBER OPTIC DISPLACEMENT SENSOR

摘要

A reflective intensity modulated fiber optic displacement sensor with self-referencing method is studied and the effect of varying source power on the sensor response is investigated in this paper. The advantages and practical limitations of the rather simple referencing technique are experimented and reported. Calibration aspects of the sensor for different target materials are discussed. Also the effect of varying source power is experimented. The various issues on sensitivity and dynamic range are reported.