Title :
An eight-channel fiber-optic Bragg grating and stimulated Brillouin sensor system for simultaneous temperature and strain measurements
Author :
Posey, R., Jr. ; Vohra, S.T.
Author_Institution :
Div. of Opt. Sci., Naval Res. Lab., Washington, DC, USA
Abstract :
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.
Keywords :
Bragg gratings; fibre optic sensors; stimulated Brillouin scattering; strain measurement; strain sensors; temperature measurement; eight channel fiber-optic sensor; eight-channel fiber-optic Bragg grating; spatial resolution; stimulated Brillouin scattering; stimulated Brillouin sensor system; strain measurements; strain resolution; temperature measurements; temperature resolution; Bragg gratings; Brillouin scattering; Capacitive sensors; Fiber gratings; Optical fiber sensors; Optical fibers; Sensor systems; Strain measurement; Temperature measurement; Temperature sensors;
Journal_Title :
Photonics Technology Letters, IEEE
