Researching | High resolution inclinometer based on vertical pendulum and fiber Bragg grating Fabry–Perot cavity

Chinese Optics Letters, Volume. 16, Issue 11, 110603(2018)

High resolution inclinometer based on vertical pendulum and fiber Bragg grating Fabry–Perot cavity

Peng Cui^1,2, Wentao Zhang^2,3、*, and Ying Song¹

Author Affiliations

¹School of Traffic and Transportation, Shijiazhuang Tiedao University, Shijiazhuang 050043, China

²State Key Laboratory of Transducer Technology, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China

³College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China

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Figures & Tables(8)

Fig. 1. Structure of the pendulum-based inclinometer and the blade-edge-type rotation structure.

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Fig. 2. Schematic diagram of the pendulum-based inclinometer.

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Fig. 3. Spectra of the two FBG-FPs.

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Fig. 4. Sensitivity versus the distance l between two parallel optical fibers.

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Fig. 5. Experimental setup of the inclinometer.

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Fig. 6. Relationship between the wavelength separation and tilt angle.

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Fig. 7. Wavelength separation during the temperature fluctuation over 10 min.

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Table 1. Parameters Used in the Configuration
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Table 1. Parameters Used in the Configuration
Parameters Values
$L$ 45 mm
$l$ 30 mm
$l_{f}$ 105 mm
$m$ 0.20 kg
$g$ $9.8 m / s^{2}$
$E$ 72 GPa
$A$ $1.23 \times 10^{- 8} m^{2}$
$P_{e}$ 0.22
$λ$ 1537 nm
$w$ 0.55 nm

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Peng Cui, Wentao Zhang, Ying Song, "High resolution inclinometer based on vertical pendulum and fiber Bragg grating Fabry–Perot cavity," Chin. Opt. Lett. 16, 110603 (2018)

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Paper Information

Category: Fiber Optics and Optical Communications

Received: Jul. 30, 2018

Accepted: Sep. 29, 2018

Published Online: Nov. 11, 2018

The Author Email: Wentao Zhang (zhangwt@semi.ac.cn)

DOI:10.3788/COL201816.110603

Topics

laser devices and laser physics

Lasers and Laser Optics

laser manufacturing

Instrumentation, Measurement and Metrology