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http://hdl.handle.net/10397/88578
Title: | Maximum amplification of a string transverse-force amplifier in fiber Bragg grating accelerometers | Authors: | Li, K Chan, THT Yau, MH Thambiratnam, DP Tam, HY |
Issue Date: | 15-Mar-2019 | Source: | OSA continuum, 15 Mar. 2019, , v. 2, no. 3, p. 938-945 | Abstract: | Fiber Bragg grating (FBG) accelerometers using transverse forces are very sensitive. When a transverse force is applied to a lightly stretched string fixed by its two ends, a much stronger axial force along the string will be induced. So, the transverse force is amplified and converted into the axial force. At a given pre-strain of the string, the maximum amplification and requirements to obtain it have not been clearly demonstrated. Here, we theoretically prove and experimentally verify that the maximum amplification occurs when the strain induced by the transverse force approximately equals the pre-strain. This revelation improves the understanding of FBG accelerometers using transverse forces. (c) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement. | Publisher: | Optical Society of America | Journal: | OSA continuum | EISSN: | 2578-7519 | DOI: | 10.1364/OSAC.2.000938 | Rights: | © 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement (https://www.osapublishing.org/library/license_v1.cfm) Journal © 2019 © 2019 Optical Society of America. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved. The following publication Kuo Li, Tommy H. T. Chan, Man Hong Yau, David P. Thambiratnam, and Hwa Yaw Tam, "Maximum amplification of a string transverse-force amplifier in fiber Bragg grating accelerometers," OSA Continuum 2, 938-945 (2019) is available at https://dx.doi.org/10.1364/OSAC.2.000938 |
Appears in Collections: | Journal/Magazine Article |
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