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In this Paper, a novel design of a fibre optic accelerometer is presented, with simplicity and low cost as its main characteristics. It is based on a simple optical fibre cantilever beam as the vibration-sensitive element, and a diffraction grating to produce the spectral dispersion of the light from the fibre end. This wavelength-dependent modulation allows a simple compensation of the output signal against variations of the optical power emitted by the source or losses in the optical path.
© 1998 IEEE
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