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Proceedings Paper

A pendulum based optical fiber inclinometer with nanoradian resolution (Conference Presentation)
Author(s): Yiyang Zhuang; Jie Huang

Paper Abstract

In this paper, we introduce a novel extrinsic Fabry-Perot interferometer (EFPI)-based optical fiber inclinometer for tilt measurements with 0.015 μrad resolution. The reported inclinometer consists of an EFPI sensor, which is formed between endfaces of a suspended rectangular mass block and a fixed optical fiber, packaged inside a rectangular container box with an oscillation dampening device. Importantly, the two reflectors of the EFPI sensor remain parallel while the cavity length of EFPI sensor meters a change in tilt. The sensor design and the measurement principle are discussed. An experiment based on measuring the tilt angle of a simply-supported beam induced by a small load is presented to verify the resolution and accuracy of a prototype inclinometer.

Paper Details

Date Published: 27 March 2018
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Proc. SPIE 10598, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2018, 105982C (27 March 2018); doi: 10.1117/12.2296603
Show Author Affiliations
Yiyang Zhuang, Missouri Univ. of Science and Technology (United States)
Jie Huang, Missouri Univ. of Science and Technology (United States)


Published in SPIE Proceedings Vol. 10598:
Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2018
Hoon Sohn, Editor(s)

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