Optimization of surface bonding methods for fiber Bragg grating sensors at cryogenic temperatures
Optical Fiber Technology(2023)
摘要
•Optimized surface bonding configuration for FBG sensors in extreme environment.•Excellent signal is observed in FemtoSecond Grating with polyimide coating at cryogenic temperatures.•Bonding FBG using cryogenic bonding agent Stycast and vacuum grease Apiezon N have been investigated.
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关键词
Fibre Bragg grating, Cryogenic measurement, Temperature sensor, Strain sensor, Bonding material, Adhesives, Fibre coating, Birefringence
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