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A strain-isolated fibre Bragg grating sensor for temperature compensation of fibre Bragg grating strain sensors

1998; IOP Publishing; Volume: 9; Issue: 8 Linguagem: Inglês

10.1088/0957-0233/9/8/004

1361-6501

Frank Haran, Jason K. Rew, Peter Foote,

Mechanical and Optical Resonators

This paper describes a method of isolating a fibre Bragg grating (FBG) from strain. This strain-isolated fibre Bragg grating (SIFBG) was then used to make strain-independent temperature measurements. The SIFBG can then be used to compensate for the temperature cross sensitivity of a FBG strain sensor. Initial results using this compensation scheme are presented, demonstrating proof of the principle.