A Fiber Bragg grating based tilt sensor suitable for constant temperature room

作者：Tang, Guoyu; Wei, Jue; Zhou, Wei; Wu, Mingyu; Yang, Meichao; Xie, Ruijun; Xu, Xiaofeng^*

来源：Journal of Optics, 2015, 17(7): 075701.

DOI：10.1088/2040-8978/17/7/075701

• fiber Bragg grating
• tilt sensor
• constant temperature room
• distinguishable tilted direction

Constant-temperature rooms have been widely used in industrial production, quality testing, and research laboratories. This paper proposes a high-precision tilt sensor suitable for a constant-temperature room, which has achieved a wide-range power change while the fiber Bragg grating (FBG) reflection peak wavelength shifted very little, thereby demonstrating a novel method for obtaining a high-precision tilt sensor. This paper also studies the effect of the reflection peak on measurement precision. The proposed sensor can distinguish the direction of tilt with an excellent sensitivity of 403 dBm/degrees and a highest achievable resolution of 2.481 x 10(-5) degrees (that is, 0.08% of the measuring range).

• 出版日期2015-7
• 单位吉林大学