Athermal fibre Bragg grating strain gauge with metal coating in measurement of thermal expansion coefficient

Yu Lung Lo; Yong Chang Lin; Yung Mien Chen

doi:10.1016/j.sna.2004.06.017

Athermal fibre Bragg grating strain gauge with metal coating in measurement of thermal expansion coefficient

Yu Lung Lo
, Yong Chang Lin
, Yung Mien Chen

Department of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

This study presents an athermal strain gauge based on fibre Bragg grating (FBG) in measuring thermal expansion coefficient of a low expansion nickel alloy block for demonstration. In order to design an athermal fibre Bragg grating strain gauge, the metal coating is electroless plated onto an optical fibre to function as a thermal compensator. Therefore, the Bragg wavelength will not shift with the ambient temperature change, and only shift regarding to the mechanical strain onto FBG. In measuring the thermal expansion coefficient of a low expansion nickel alloy block, data are in good agreement between the tests by using the athermal FBG and resistance strain gauge techniques. As a result, the athermal strain gauge based on FBG is demonstrated and feasible for the future applications.

Original language	English
Pages (from-to)	103-109
Number of pages	7
Journal	Sensors and Actuators, A: Physical
Volume	117
Issue number	1
DOIs	https://doi.org/10.1016/j.sna.2004.06.017
Publication status	Published - 2005 Jan 3

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Instrumentation
Condensed Matter Physics
Surfaces, Coatings and Films
Metals and Alloys
Electrical and Electronic Engineering

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10.1016/j.sna.2004.06.017

Cite this

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title = "Athermal fibre Bragg grating strain gauge with metal coating in measurement of thermal expansion coefficient",

abstract = "This study presents an athermal strain gauge based on fibre Bragg grating (FBG) in measuring thermal expansion coefficient of a low expansion nickel alloy block for demonstration. In order to design an athermal fibre Bragg grating strain gauge, the metal coating is electroless plated onto an optical fibre to function as a thermal compensator. Therefore, the Bragg wavelength will not shift with the ambient temperature change, and only shift regarding to the mechanical strain onto FBG. In measuring the thermal expansion coefficient of a low expansion nickel alloy block, data are in good agreement between the tests by using the athermal FBG and resistance strain gauge techniques. As a result, the athermal strain gauge based on FBG is demonstrated and feasible for the future applications.",

author = "Lo, \{Yu Lung\} and Lin, \{Yong Chang\} and Chen, \{Yung Mien\}",

note = "Funding Information: The work is partially supported by Ministry of Education Program for Promoting Academic Excellence of Universities under the grant number A-91-E-FA08-1-4, Taiwan, ROC. ",

year = "2005",

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doi = "10.1016/j.sna.2004.06.017",

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TY - JOUR

T1 - Athermal fibre Bragg grating strain gauge with metal coating in measurement of thermal expansion coefficient

AU - Lo, Yu Lung

AU - Lin, Yong Chang

AU - Chen, Yung Mien

N1 - Funding Information: The work is partially supported by Ministry of Education Program for Promoting Academic Excellence of Universities under the grant number A-91-E-FA08-1-4, Taiwan, ROC.

PY - 2005/1/3

Y1 - 2005/1/3

N2 - This study presents an athermal strain gauge based on fibre Bragg grating (FBG) in measuring thermal expansion coefficient of a low expansion nickel alloy block for demonstration. In order to design an athermal fibre Bragg grating strain gauge, the metal coating is electroless plated onto an optical fibre to function as a thermal compensator. Therefore, the Bragg wavelength will not shift with the ambient temperature change, and only shift regarding to the mechanical strain onto FBG. In measuring the thermal expansion coefficient of a low expansion nickel alloy block, data are in good agreement between the tests by using the athermal FBG and resistance strain gauge techniques. As a result, the athermal strain gauge based on FBG is demonstrated and feasible for the future applications.

AB - This study presents an athermal strain gauge based on fibre Bragg grating (FBG) in measuring thermal expansion coefficient of a low expansion nickel alloy block for demonstration. In order to design an athermal fibre Bragg grating strain gauge, the metal coating is electroless plated onto an optical fibre to function as a thermal compensator. Therefore, the Bragg wavelength will not shift with the ambient temperature change, and only shift regarding to the mechanical strain onto FBG. In measuring the thermal expansion coefficient of a low expansion nickel alloy block, data are in good agreement between the tests by using the athermal FBG and resistance strain gauge techniques. As a result, the athermal strain gauge based on FBG is demonstrated and feasible for the future applications.

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U2 - 10.1016/j.sna.2004.06.017

DO - 10.1016/j.sna.2004.06.017

M3 - Article

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SN - 0924-4247

VL - 117

SP - 103

EP - 109

JO - Sensors and Actuators, A: Physical

JF - Sensors and Actuators, A: Physical

IS - 1

ER -

Athermal fibre Bragg grating strain gauge with metal coating in measurement of thermal expansion coefficient

Abstract

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