Simultaneous strain, temperature, and vibration measurement using a multiplexed FBG/FFPI sensor system

Yun-jiang Rao; Philip J. Henderson; David A. Jackson; Lin Zhang; Ian Bennion; Richard O. Claus; William B. Spillman, Jr.

doi:10.1117/12.316989

Simultaneous strain, temperature, and vibration measurement using a multiplexed FBG/FFPI sensor system

Yun-jiang Rao, Philip J. Henderson, David A. Jackson, Lin Zhang, Ian Bennion, Richard O. Claus (Editor), William B. Spillman, Jr. (Editor)

Research output: Contribution to journal › Conference article › peer-review

Abstract

A novel technique for simultaneous measurement of static- strain, temperature and vibration for structural health monitoring is demonstrated using a wavelength-multiplexed in-fiber-Bragg-grating (FBG)/fiber-Fabry-Perot- interferometer (FFPI) sensor system, which combines the advantages of both FBGs and fiber-optic low-coherence interferometry. An experimental system, including two 1m long FFPIs with central wavelengths of 1531nm and 1534nm and a FBG with a central wavelength of 1555nm, is demonstrated. A static strain resolution of better than 1 (mu) (epsilon) , a temperature sensitivity of 0.1 degrees C and a vibration amplitude sensitivity of better than 1nm/(root) Hz have been obtained. The system cross-talk measured is less than -50dB.

Original language	English
Pages (from-to)	432-437
Journal	Proceedings of SPIE - International Society for Optical Engineering
Volume	3330
DOIs	https://doi.org/10.1117/12.316989
Publication status	Published - 21 Jul 1998
Event	5TH ANNUAL INTERNATIONAL SYMPOSIUM ON SMART STRUCTURES AND MATERIALS - San Diego, United States Duration: 1 Mar 1998 → 5 Mar 1998

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@article{91fe29ee25d4454c98570b793475f959,

title = "Simultaneous strain, temperature, and vibration measurement using a multiplexed FBG/FFPI sensor system",

abstract = "A novel technique for simultaneous measurement of static- strain, temperature and vibration for structural health monitoring is demonstrated using a wavelength-multiplexed in-fiber-Bragg-grating (FBG)/fiber-Fabry-Perot- interferometer (FFPI) sensor system, which combines the advantages of both FBGs and fiber-optic low-coherence interferometry. An experimental system, including two 1m long FFPIs with central wavelengths of 1531nm and 1534nm and a FBG with a central wavelength of 1555nm, is demonstrated. A static strain resolution of better than 1 (mu) (epsilon) , a temperature sensitivity of 0.1 degrees C and a vibration amplitude sensitivity of better than 1nm/(root) Hz have been obtained. The system cross-talk measured is less than -50dB.",

author = "Yun-jiang Rao and Henderson, {Philip J.} and Jackson, {David A.} and Lin Zhang and Ian Bennion and Claus, {Richard O.} and {Spillman, Jr.}, {William B.}",

year = "1998",

month = jul,

day = "21",

doi = "10.1117/12.316989",

language = "English",

volume = "3330",

pages = "432--437",

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

issn = "0277-786X",

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note = "5TH ANNUAL INTERNATIONAL SYMPOSIUM ON SMART STRUCTURES AND MATERIALS ; Conference date: 01-03-1998 Through 05-03-1998",

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TY - JOUR

T1 - Simultaneous strain, temperature, and vibration measurement using a multiplexed FBG/FFPI sensor system

AU - Rao, Yun-jiang

AU - Henderson, Philip J.

AU - Jackson, David A.

AU - Zhang, Lin

AU - Bennion, Ian

A2 - Claus, Richard O.

A2 - Spillman, Jr., William B.

PY - 1998/7/21

Y1 - 1998/7/21

N2 - A novel technique for simultaneous measurement of static- strain, temperature and vibration for structural health monitoring is demonstrated using a wavelength-multiplexed in-fiber-Bragg-grating (FBG)/fiber-Fabry-Perot- interferometer (FFPI) sensor system, which combines the advantages of both FBGs and fiber-optic low-coherence interferometry. An experimental system, including two 1m long FFPIs with central wavelengths of 1531nm and 1534nm and a FBG with a central wavelength of 1555nm, is demonstrated. A static strain resolution of better than 1 (mu) (epsilon) , a temperature sensitivity of 0.1 degrees C and a vibration amplitude sensitivity of better than 1nm/(root) Hz have been obtained. The system cross-talk measured is less than -50dB.

AB - A novel technique for simultaneous measurement of static- strain, temperature and vibration for structural health monitoring is demonstrated using a wavelength-multiplexed in-fiber-Bragg-grating (FBG)/fiber-Fabry-Perot- interferometer (FFPI) sensor system, which combines the advantages of both FBGs and fiber-optic low-coherence interferometry. An experimental system, including two 1m long FFPIs with central wavelengths of 1531nm and 1534nm and a FBG with a central wavelength of 1555nm, is demonstrated. A static strain resolution of better than 1 (mu) (epsilon) , a temperature sensitivity of 0.1 degrees C and a vibration amplitude sensitivity of better than 1nm/(root) Hz have been obtained. The system cross-talk measured is less than -50dB.

UR - http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=940742

U2 - 10.1117/12.316989

DO - 10.1117/12.316989

M3 - Conference article

SN - 0277-786X

VL - 3330

SP - 432

EP - 437

JO - Proceedings of SPIE - International Society for Optical Engineering

JF - Proceedings of SPIE - International Society for Optical Engineering

T2 - 5TH ANNUAL INTERNATIONAL SYMPOSIUM ON SMART STRUCTURES AND MATERIALS

Y2 - 1 March 1998 through 5 March 1998

ER -

Simultaneous strain, temperature, and vibration measurement using a multiplexed FBG/FFPI sensor system

Abstract

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