FBG sensor interrogation based on RF signal measurement

Xinyong Dong; Li Yang Shao; H. Y. Fu; Hwa Yaw Tam; Chao Lu

doi:10.1117/12.785928

FBG sensor interrogation based on RF signal measurement

Xinyong Dong, Li Yang Shao, H. Y. Fu, Hwa Yaw Tam, Chao Lu

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

1 Citation (Scopus)

Abstract

A novel interrogation method for optical fiber Bragg grating (FBG) sensors has been proposed by converting the change of the FBG wavelength into the phase difference between two radio frequency (RF) signals. As a result, the beating-induced RF signal power changes with the FBG wavelength shift. This technique could be used for high speed FBG interrogation and, due to the use of a second FBG to produce the reference RF signal, temperature cross-sensitivity effect is compensated automatically. Theoretical analysis and experimental demonstration have been carried out. Performances of the FBG sensor interrogation scheme have been studied.

Original language	English
Title of host publication	19th International Conference on Optical Fibre Sensors
Volume	7004
DOIs	https://doi.org/10.1117/12.785928
Publication status	Published - 26 Jun 2008
Event	19th International Conference on Optical Fibre Sensors - Perth, WA, Australia Duration: 15 Apr 2008 → 18 Apr 2008

Conference

Conference	19th International Conference on Optical Fibre Sensors
Country/Territory	Australia
City	Perth, WA
Period	15/04/08 → 18/04/08

Keywords

Fiber Bragg grating sensor
Interrogation
Photodetector
Radio frequency

ASJC Scopus subject areas

Electrical and Electronic Engineering
Condensed Matter Physics

More information

10.1117/12.785928

Cite this

@inproceedings{4fa44b49d32142f7b92eca7569133b3a,

title = "FBG sensor interrogation based on RF signal measurement",

abstract = "A novel interrogation method for optical fiber Bragg grating (FBG) sensors has been proposed by converting the change of the FBG wavelength into the phase difference between two radio frequency (RF) signals. As a result, the beating-induced RF signal power changes with the FBG wavelength shift. This technique could be used for high speed FBG interrogation and, due to the use of a second FBG to produce the reference RF signal, temperature cross-sensitivity effect is compensated automatically. Theoretical analysis and experimental demonstration have been carried out. Performances of the FBG sensor interrogation scheme have been studied.",

keywords = "Fiber Bragg grating sensor, Interrogation, Photodetector, Radio frequency",

author = "Xinyong Dong and Shao, {Li Yang} and Fu, {H. Y.} and Tam, {Hwa Yaw} and Chao Lu",

year = "2008",

month = jun,

day = "26",

doi = "10.1117/12.785928",

language = "English",

isbn = "9780819472045",

volume = "7004",

booktitle = "19th International Conference on Optical Fibre Sensors",

note = "19th International Conference on Optical Fibre Sensors ; Conference date: 15-04-2008 Through 18-04-2008",

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TY - GEN

T1 - FBG sensor interrogation based on RF signal measurement

AU - Dong, Xinyong

AU - Shao, Li Yang

AU - Fu, H. Y.

AU - Tam, Hwa Yaw

AU - Lu, Chao

PY - 2008/6/26

Y1 - 2008/6/26

N2 - A novel interrogation method for optical fiber Bragg grating (FBG) sensors has been proposed by converting the change of the FBG wavelength into the phase difference between two radio frequency (RF) signals. As a result, the beating-induced RF signal power changes with the FBG wavelength shift. This technique could be used for high speed FBG interrogation and, due to the use of a second FBG to produce the reference RF signal, temperature cross-sensitivity effect is compensated automatically. Theoretical analysis and experimental demonstration have been carried out. Performances of the FBG sensor interrogation scheme have been studied.

AB - A novel interrogation method for optical fiber Bragg grating (FBG) sensors has been proposed by converting the change of the FBG wavelength into the phase difference between two radio frequency (RF) signals. As a result, the beating-induced RF signal power changes with the FBG wavelength shift. This technique could be used for high speed FBG interrogation and, due to the use of a second FBG to produce the reference RF signal, temperature cross-sensitivity effect is compensated automatically. Theoretical analysis and experimental demonstration have been carried out. Performances of the FBG sensor interrogation scheme have been studied.

KW - Fiber Bragg grating sensor

KW - Interrogation

KW - Photodetector

KW - Radio frequency

UR - http://www.scopus.com/inward/record.url?scp=45549085876&partnerID=8YFLogxK

U2 - 10.1117/12.785928

DO - 10.1117/12.785928

M3 - Conference article published in proceeding or book

SN - 9780819472045

VL - 7004

BT - 19th International Conference on Optical Fibre Sensors

T2 - 19th International Conference on Optical Fibre Sensors

Y2 - 15 April 2008 through 18 April 2008

ER -

FBG sensor interrogation based on RF signal measurement

Abstract

Conference

Keywords

ASJC Scopus subject areas

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