Glue independent FBG sensor with enhanced stability

•Original design of FBG-based strain sensor is reported.•Design allows to eliminate glue effects.•The work of a real sample is shown.•Analytical estimations and experimental results are presented. New design of FBG-based strain sensor is reported. Fiber with two Bragg gratings is reeled up on a ring...

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Bibliographic Details
Published in:Optical fiber technology 2021-07, Vol.64, p.102533, Article 102533
Main Authors: Churin, A.E., Nemov, I.N., Skvortsov, M.I.
Format: Article
Language:English
Subjects:
FBG deformation sensor
FBG epoxy bond
FBG strain sensor
Stable FBG sensor
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Summary:•Original design of FBG-based strain sensor is reported.•Design allows to eliminate glue effects.•The work of a real sample is shown.•Analytical estimations and experimental results are presented. New design of FBG-based strain sensor is reported. Fiber with two Bragg gratings is reeled up on a ring-shaped base. Main design feature is eliminated glue effects on FBG reflection spectrum. In addition, design reduces errors of strain measurements caused by temperature variations. Analytical estimations and experimental results are presented.
ISSN:1068-5200
1095-9912
DOI:10.1016/j.yofte.2021.102533