An eight-channel fiber-optic Bragg grating and stimulated Brillouin sensor system for simultaneous temperature and strain measurements

An eight channel fiber-optic sensor has been developed to simultaneously measure the strain and temperature independently using fiber Bragg gratings and stimulated Brillouin scattering. The temperature and strain resolution is approximately 1.5/spl deg/C and 20 μ/spl epsiv/, and the spatial resoluti...

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Bibliographic Details
Published in:IEEE photonics technology letters 1999-12, Vol.11 (12), p.1641-1643
Main Authors: Posey, R., Vohra, S.T.
Format: Article
Language:English
Subjects:
Bragg gratings
Brillouin scattering
Brillouin zone
Capacitive sensors
Channels
Fiber gratings
Fiber optics
Optical fiber sensors
Optical fibers
Scattering
Sensor systems
Sensors
Strain
Strain measurement
Temperature measurement
Temperature sensors
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Summary:An eight channel fiber-optic sensor has been developed to simultaneously measure the strain and temperature independently using fiber Bragg gratings and stimulated Brillouin scattering. The temperature and strain resolution is approximately 1.5/spl deg/C and 20 μ/spl epsiv/, and the spatial resolution for sensing Brillouin scattering is 5 m.
ISSN:1041-1135
1941-0174
DOI:10.1109/68.806873