skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Simultaneous distributed strain and temperature measurement

Abstract

Brillouin-scattering-based sensors are capable of measuring either the strain or the temperature along the length of an optical fiber in a distributed fashion through measurement of the Brillouin-frequency shift. The cross sensitivity of the frequency shift to these two parameters makes it impossible to differentiate between them by measurement of the frequency shift alone. We report on a new technique that permits the simultaneous measurement of strain and temperature to resolutions of {plus_minus}178 {mu}{var_epsilon} and {plus_minus}3.9&hthinsp;{degree}C at a spatial resolution of 3.5 m by incorporation of the Brillouin-loss peak power with the conventional Brillouin-frequency measurement. {copyright} 1999 Optical Society of America

Authors:
; ; ;  [1]
  1. University of New Brunswick, P. O. Box 4400, Fredericton, New Brunswick, E3B 5A3 (CANADA)
Publication Date:
Research Org.:
University of Rochester
OSTI Identifier:
698824
DOE Contract Number:  
FC03-92SF19460
Resource Type:
Journal Article
Journal Name:
Applied Optics
Additional Journal Information:
Journal Volume: 38; Journal Issue: 25; Other Information: PBD: Sep 1999
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION; 44 INSTRUMENTATION, INCLUDING NUCLEAR AND PARTICLE DETECTORS; TEMPERATURE MEASUREMENT; PLASMA DIAGNOSTICS; DIRECT DRIVE LASER IMPLOSION; LASER TARGETS; INTERFEROMETRY; VISIBLE SPECTRA; VISIBILITY

Citation Formats

Smith, J., Brown, A., DeMerchant, M., and Bao, X. Simultaneous distributed strain and temperature measurement. United States: N. p., 1999. Web. doi:10.1364/AO.38.005372.
Smith, J., Brown, A., DeMerchant, M., & Bao, X. Simultaneous distributed strain and temperature measurement. United States. doi:10.1364/AO.38.005372.
Smith, J., Brown, A., DeMerchant, M., and Bao, X. Wed . "Simultaneous distributed strain and temperature measurement". United States. doi:10.1364/AO.38.005372.
@article{osti_698824,
title = {Simultaneous distributed strain and temperature measurement},
author = {Smith, J. and Brown, A. and DeMerchant, M. and Bao, X.},
abstractNote = {Brillouin-scattering-based sensors are capable of measuring either the strain or the temperature along the length of an optical fiber in a distributed fashion through measurement of the Brillouin-frequency shift. The cross sensitivity of the frequency shift to these two parameters makes it impossible to differentiate between them by measurement of the frequency shift alone. We report on a new technique that permits the simultaneous measurement of strain and temperature to resolutions of {plus_minus}178 {mu}{var_epsilon} and {plus_minus}3.9&hthinsp;{degree}C at a spatial resolution of 3.5 m by incorporation of the Brillouin-loss peak power with the conventional Brillouin-frequency measurement. {copyright} 1999 Optical Society of America},
doi = {10.1364/AO.38.005372},
journal = {Applied Optics},
number = 25,
volume = 38,
place = {United States},
year = {1999},
month = {9}
}