A High Resolution Reflectometer for Measuring Dynamic Strain in a Single Mode Optical Fibre
A high resolution, pulsed time-of-flight (TOF) reflectometer for measuring length and dynamic strain in a single mode optical fibre is reported. The object of the paper is to discuss the measurement principle and to present the results of some practical experiments, including a pull test on an OPGW cable and an elongation test on a standard telecommunication fibre with a dual-acrylate coating. Applications in the field of optical fibre-based strain sensing are also briefly reviewed.
KeywordsSensor Network Single Mode Optical Fibre Laser Rangefinding Optical Time Domain Reflectometer Optical Fibre Coupler
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