Temperature-independent fiber Bragg grating micro-displacement sensor

Tuan Guo; Qida Zhao; Lifang Xue; Guiling Huang; Shiyu Gao; Yu Yan; Luming Zhao; Lihui Liu

doi:10.1117/12.694436

Temperature-independent fiber Bragg grating micro-displacement sensor

Tuan Guo^*, Qida Zhao, Lifang Xue, Guiling Huang, Shiyu Gao, Yu Yan, Luming Zhao, Lihui Liu

^*Corresponding author for this work

Nankai University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Citation (Scopus)

Abstract

Temperature-independent micro-displacement measurement using a single fiber Bragg grating based on broadened reflection spectrum is proposed and experimentally demonstrated. The structure of specially designed bending cantilever beam (BCB) is proposed. The BCB induces axial strain gradient along the sensing FBG, resulting in a Bragg bandwidth modulation. The broadening of FBG spectrum bandwidth and the reflected optical power correspond to micro-displacement changes, insensitive to spatially uniform temperature variations. For a displacement variation of 20mm and a temperature change from 20°C to 100°C, the micro-displacement measurement deviation error is ±0.12mm without any temperature compensation. Through optical power detecting by a pin photodiode (PD), the micro-displacement sensor avoids complex demodulation process and potentially costs little.

Original language	English
Title of host publication	Advanced Laser Technologies 2005
DOIs	https://doi.org/10.1117/12.694436
Publication status	Published - 2006
Externally published	Yes
Event	Advanced Laser Technologies 2005 - Tianjin, China Duration: 3 Sept 2005 → 6 Sept 2005

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	6344 II
ISSN (Print)	0277-786X

Conference

Conference	Advanced Laser Technologies 2005
Country/Territory	China
City	Tianjin
Period	3/09/05 → 6/09/05

Keywords

Bending cantilever beam
Fiber bragg gratings
Micro-displacement sensor
Temperature-independent

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10.1117/12.694436

Cite this

@inproceedings{a02507ae677b43918f51fce765b97cad,

title = "Temperature-independent fiber Bragg grating micro-displacement sensor",

abstract = "Temperature-independent micro-displacement measurement using a single fiber Bragg grating based on broadened reflection spectrum is proposed and experimentally demonstrated. The structure of specially designed bending cantilever beam (BCB) is proposed. The BCB induces axial strain gradient along the sensing FBG, resulting in a Bragg bandwidth modulation. The broadening of FBG spectrum bandwidth and the reflected optical power correspond to micro-displacement changes, insensitive to spatially uniform temperature variations. For a displacement variation of 20mm and a temperature change from 20°C to 100°C, the micro-displacement measurement deviation error is ±0.12mm without any temperature compensation. Through optical power detecting by a pin photodiode (PD), the micro-displacement sensor avoids complex demodulation process and potentially costs little.",

keywords = "Bending cantilever beam, Fiber bragg gratings, Micro-displacement sensor, Temperature-independent",

author = "Tuan Guo and Qida Zhao and Lifang Xue and Guiling Huang and Shiyu Gao and Yu Yan and Luming Zhao and Lihui Liu",

year = "2006",

doi = "10.1117/12.694436",

language = "English",

isbn = "0819464201",

series = "Proceedings of SPIE - The International Society for Optical Engineering",

booktitle = "Advanced Laser Technologies 2005",

note = "Advanced Laser Technologies 2005 ; Conference date: 03-09-2005 Through 06-09-2005",

}

Guo, T, Zhao, Q, Xue, L, Huang, G, Gao, S, Yan, Y, Zhao, L & Liu, L 2006, Temperature-independent fiber Bragg grating micro-displacement sensor. in Advanced Laser Technologies 2005., 634433, Proceedings of SPIE - The International Society for Optical Engineering, vol. 6344 II, Advanced Laser Technologies 2005, Tianjin, China, 3/09/05. https://doi.org/10.1117/12.694436

TY - GEN

T1 - Temperature-independent fiber Bragg grating micro-displacement sensor

AU - Guo, Tuan

AU - Zhao, Qida

AU - Xue, Lifang

AU - Huang, Guiling

AU - Gao, Shiyu

AU - Yan, Yu

AU - Zhao, Luming

AU - Liu, Lihui

PY - 2006

Y1 - 2006

N2 - Temperature-independent micro-displacement measurement using a single fiber Bragg grating based on broadened reflection spectrum is proposed and experimentally demonstrated. The structure of specially designed bending cantilever beam (BCB) is proposed. The BCB induces axial strain gradient along the sensing FBG, resulting in a Bragg bandwidth modulation. The broadening of FBG spectrum bandwidth and the reflected optical power correspond to micro-displacement changes, insensitive to spatially uniform temperature variations. For a displacement variation of 20mm and a temperature change from 20°C to 100°C, the micro-displacement measurement deviation error is ±0.12mm without any temperature compensation. Through optical power detecting by a pin photodiode (PD), the micro-displacement sensor avoids complex demodulation process and potentially costs little.

AB - Temperature-independent micro-displacement measurement using a single fiber Bragg grating based on broadened reflection spectrum is proposed and experimentally demonstrated. The structure of specially designed bending cantilever beam (BCB) is proposed. The BCB induces axial strain gradient along the sensing FBG, resulting in a Bragg bandwidth modulation. The broadening of FBG spectrum bandwidth and the reflected optical power correspond to micro-displacement changes, insensitive to spatially uniform temperature variations. For a displacement variation of 20mm and a temperature change from 20°C to 100°C, the micro-displacement measurement deviation error is ±0.12mm without any temperature compensation. Through optical power detecting by a pin photodiode (PD), the micro-displacement sensor avoids complex demodulation process and potentially costs little.

KW - Bending cantilever beam

KW - Fiber bragg gratings

KW - Micro-displacement sensor

KW - Temperature-independent

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U2 - 10.1117/12.694436

DO - 10.1117/12.694436

M3 - Conference contribution

AN - SCOPUS:33748677963

SN - 0819464201

SN - 9780819464200

T3 - Proceedings of SPIE - The International Society for Optical Engineering

BT - Advanced Laser Technologies 2005

T2 - Advanced Laser Technologies 2005

Y2 - 3 September 2005 through 6 September 2005

ER -

Temperature-independent fiber Bragg grating micro-displacement sensor

Abstract

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Keywords

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