作者:
DOI: 10.1088/0957-0233/9/8/006
关键词: Demodulation 、 Single-mode optical fiber 、 Materials science 、 Refractive index 、 Thermal expansion 、 Optics 、 Interferometry 、 Optical fiber 、 Fiber optic sensor 、 Differential (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.