Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/12232
Title: Development of novel optical fiber sensors for measuring tilts and displacements of geotechnical structures
Authors: Pei, HF
Yin, JH 
Jin, W 
Keywords: Beam theory
Fiber Bragg grating (FBG)
Finite difference method
Inclinometer
Tilt sensor
Issue Date: 2013
Publisher: Institute of Physics Publishing
Source: Measurement science and technology, 2013, v. 24, no. 9, 095202 How to cite?
Journal: Measurement science and technology 
Abstract: Two kinds of innovative sensors based on optical fiber sensing technologies have been proposed and developed for measuring tilts and displacements in geotechnical structures. The newly developed tilt sensors are based on classical beam theory and were successfully used to measure the inclinations in a physical model test. The conventional inclinometers including in-place and portable types, as a key instrument, are very commonly used in geotechnical engineering. In this paper, fiber Bragg grating sensing technology is used to measure strains along a standard inclinometer casing and these strains are used to calculate the lateral and/or horizontal deflections of the casing using the beam theory and a finite difference method. Finally, the monitoring results are verified by laboratory tests.
URI: http://hdl.handle.net/10397/12232
ISSN: 0957-0233
EISSN: 1361-6501
DOI: 10.1088/0957-0233/24/9/095202
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