Novel temperature-insensitive clinometer using fiber Bragg gratings

Xinyong Dong; Chunlei Zhan; Kun Hu; P. Shum; Na Ni; Jian Sun; C. C. Chan

doi:10.1117/12.630255

5 November 2005 Novel temperature-insensitive clinometer using fiber Bragg gratings

Xinyong Dong, Chunlei Zhan, Kun Hu, P. Shum, Na Ni, Jian Sun, C. C. Chan

Proceedings Volume 5998, Sensors for Harsh Environments II; 59980S (2005) https://doi.org/10.1117/12.630255
Event: Optics East 2005, 2005, Boston, MA, United States

Abstract

We report a novel clinometer (or tilt sensor) by using three fiber Bragg gratings (FBGs). It can detect the magnitude as well as the direction of the inclination from the horizontal direction by directly measuring the reflected optical powers of the FBGs, whose bandwidths vary with the inclination. The experimental results show that it is inherently insensitive to temperature, eliminating the need for compensation of temperature, and a tilt angle measurement accuracy of ±0.13° and resolution of 0.02° have been achieved.

Citation Download Citation

Xinyong Dong, Chunlei Zhan, Kun Hu, P. Shum, Na Ni, Jian Sun, and C. C. Chan "Novel temperature-insensitive clinometer using fiber Bragg gratings", Proc. SPIE 5998, Sensors for Harsh Environments II, 59980S (5 November 2005); https://doi.org/10.1117/12.630255

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