A novel method of temperature compensation for microvibration sensor with fiber gratings

Details A novel method of temperature compensation for microvibration sensor with fiber gratings A novel method of temperature compensation for microvibration sensor with fiber gratings

Feb 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005spie.5634..515d&link_type=abstract

Advanced Sensor Systems and Applications II. Edited by Rao, Yun-Jiang; Kwon, Osuk Y.; Peng, Gang-Ding. Proceedings of the SPIE,

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A technique for temperature compensation in fiber grating vibration sensor is reported. By special design, it causes reversed strain on two FBGs and has temperature effects cancelled. After discussion about the factors affecting the sensitivity and the width of frequency band, it is experimentally proved that the total variation in wavelength difference within temperature of -15 ~ 50°C is nearly 0. When the input vibration frequency is up to 800Hz and the drive power is as low as 2mw, the output waveform is still distortionless.

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