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A Probe of Fiber Optic OTDR Displacement Sensor  

Kwon, Il-Bum (Center for Environment and Safety Measurement, Korea Research Institute of Standards & Science)
Kim, Chi-Yeop (Center for Environment and Safety Measurement, Korea Research Institute of Standards & Science)
Seo, Dae-Cheol (Center for Environment and Safety Measurement, Korea Research Institute of Standards & Science)
Publication Information
Journal of the Korean Society for Nondestructive Testing / v.25, no.5, 2005 , pp. 350-355 More about this Journal
Abstract
The probes of fiber optic OTDR (Optical Time Domain Reflectometry) sensor was developed to measure displacements of social infrastructures. This probe was simply constructed with two conventional optical fiber connectors, and a fiber bending part, which transforms displacement to optical loss. When the displacement was affected on the bending loss part, the reflected light intensity of one optical connector was changed. The displacement was determined from this reflected light intensity change of the connector. fiber optic OTDR displacement sensor was developed as the multiplexed type of one fiber line with 5 sensor probes. Multiplexing operation was tested by these 5 sensor probes.
Keywords
fiber-optic otdr displacement sensor; probe; social infrastructure; multiplexing;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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