다중화된 광 손실형 광섬유 센서에 의한 변위의 측정

Displacement Measurement by Multiplexed Optical Loss -based Fiber Optic Sensor

Light losses in optical fibers are investigated by a fiber optic OTDR (Optical Time Domain Reflectometry) sensor system to develop fiber optic probes for structural displacement measurement. The displacement sensitivity was determined by the measurements of fiber-bending loss according to the gage length changes of the displacement sensor. The fiber optic displacement probe was manufactured to verify the feasibility of the structural displacement measurement.