Temperature-compensated fibre optic strain sensor using the differential white-light interferometric technique

作者:

DOI: 10.1088/0957-0233/9/8/006

关键词: DemodulationSingle-mode optical fiberMaterials scienceRefractive indexThermal expansionOpticsInterferometryOptical fiberFiber optic sensorDifferential (mathematics)

摘要: A differential demodulation fibre optic strain sensing system adapted to the needs of complex materials or smart structures monitoring is presented. It based on low-coherence interferometry in standard single mode fibres and has advantage that it can automatically compensate for temperature-induced variations refractive index thermal expansion silica fibres.

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