Title :
Temperature-independent fiber Bragg grating tilt sensor
Author :
Guan, Bai-Ou ; Tam, Hwa-Yaw ; Liu, Shun-Yee
Author_Institution :
Dept. of Electr. Eng., Hong Kong Polytech. Univ., China
Abstract :
We report a vertical-pendulum-based fiber Bragg grating tilt sensor, which can detect the magnitude as well as the direction of the inclination from the horizontal direction. The sensor is insensitive to temperature, and preliminary results show that tilt angle accuracy and resolution of better than 0.1° and 0.007° can be easily achieved.
Keywords :
Bragg gratings; angular measurement; attitude measurement; fibre optic sensors; pendulums; photoelasticity; equilibrium equations; fiber Bragg grating sensor; horizontal direction; inclination direction; phase-mask method; photoelastic coefficient; single-mode fiber; temperature-independent sensor; tilt angle; tilt sensor; vertical-pendulum-based sensor; wavelength separation; Arm; Bragg gratings; Capacitive sensors; Equations; Fiber gratings; Optical fiber sensors; Optical fibers; Optical reflection; Temperature sensors; Wavelength measurement;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2003.820101
