7 November 2012 Range-resolved single-sideband optical fibre interferometry for quasi-distributed dynamic strain sensing
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Proceedings Volume 8421, OFS2012 22nd International Conference on Optical Fiber Sensors; 84218I (2012) https://doi.org/10.1117/12.974933
Event: OFS2012 22nd International Conference on Optical Fiber Sensor, 2012, Beijing, China
Abstract
A novel optical signal processing scheme for fibre sensors is proposed, which combines interferometric phase measurements with range multiplexing. The scheme is based on single-sideband signal processing and uses continuous-wave pseudo-random range encoding. The potential of the technique for cost-effective dynamic quasi-distributed strain sensing is explored by applying it to an array of fibre segments. In its current implementation dynamic strains in segments of 3.4 m gauge lengths can be measured with a resolution well below microstrains at a bandwidth of 100 kHz.
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Thomas Kissinger, Thomas Kissinger, Thomas O. H. Charrett, Thomas O. H. Charrett, Ralph P. Tatam, Ralph P. Tatam, } "Range-resolved single-sideband optical fibre interferometry for quasi-distributed dynamic strain sensing", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84218I (7 November 2012); doi: 10.1117/12.974933; https://doi.org/10.1117/12.974933
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