@inproceedings{82ff990ea9374c428cefea26fc20f8c9,
title = "High-axial-resolution distributed lateral displacement measurement based on differential pulse-width pair BOTDA",
abstract = "We report for the first time to the best of our knowledge a distributed lateral displacement sensor through measuring high-spatial-resolution axial strain based on differential pulse-width pair Brillouin optical time-domain analysis. With the assumption of a sine-shape displacement caused by a small surface deformation, the relationship between the axial strain and the lateral displacement of a flat plate is established, based on which a distributed lateral displacement measurement is realized. In experiment, a periodic lateral displacement of a flat plate is constructed through a ripple spring by applying side pressure on them, and the axial strain measurement with a 2-cm spatial resolution is performed by using a differential pulse pair of 8/8.2 ns. Using two types of ripple springs, measurements of lateral displacements with periods of 30 and 32.5 mm are demonstrated with a maximum displacement of 0.43 mm and a minimum measurable displacement of ∼40 μm.",
keywords = "Brillouin optical fiber sensors, Distributed optical fiber sensors, Lateral displacement measurement",
author = "Yongkang Dong and Xiaoyi Bao and Liang Chen",
year = "2011",
doi = "10.1117/12.899386",
language = "英语",
isbn = "9780819482464",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
booktitle = "21st International Conference on Optical Fiber Sensors",
note = "21st International Conference on Optical Fiber Sensors ; Conference date: 15-05-2011 Through 19-05-2011",
}