{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,4]],"date-time":"2026-06-04T13:08:41Z","timestamp":1780578521445,"version":"3.54.1"},"reference-count":18,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2019,6,3]],"date-time":"2019-06-03T00:00:00Z","timestamp":1559520000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["61805050, 61705050, 61535004, 61675052, 61735009, 61765004, 61640409, 61377058"],"award-info":[{"award-number":["61805050, 61705050, 61535004, 61675052, 61735009, 61765004, 61640409, 61377058"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Guangxi Project","award":["2018JJB170037, 2018AD19033, 2018AD19045"],"award-info":[{"award-number":["2018JJB170037, 2018AD19033, 2018AD19045"]}]},{"DOI":"10.13039\/501100010255","name":"Guangxi Key Laboratory of Automatic Detection Technology and Instrument Foundation","doi-asserted-by":"publisher","award":["YQ19106, YQ18111"],"award-info":[{"award-number":["YQ19106, YQ18111"]}],"id":[{"id":"10.13039\/501100010255","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>A simple structure and easily fabricated displacement sensor was proposed and demonstrated based on a bending-induced fiber interferometer. In the design, the fiber interferometer was formed only by bending the single-mode fiber into a small U-shape without splicing, tapering, or heating pre-processing, which effectively reduces the complexity of the fabrication process, greatly enhances the mechanical strength of the sensor, and lowers the cost in the displacement sensing applications. The displacement sensing performances for the sensor with different bending radii of 3.3 mm, 4.4 mm, 5.0 mm, and 6.3 mm were investigated. Experimental results showed that the sensor had a good linear response, and for the bending radii of 3.3, 4.4, 5.0, and 6.3 mm, the proposed sensors showed high sensitivities of 134.3, 105.1, 120.9, and 144.1 pm\/\u03bcm, respectively.<\/jats:p>","DOI":"10.3390\/s19112531","type":"journal-article","created":{"date-parts":[[2019,6,3]],"date-time":"2019-06-03T11:31:01Z","timestamp":1559561461000},"page":"2531","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":25,"title":["Displacement Sensor Based on a Small U-Shaped Single-Mode Fiber"],"prefix":"10.3390","volume":"19","author":[{"given":"Chuanxin","family":"Teng","sequence":"first","affiliation":[{"name":"Photonics Research Centre, Guilin University of Electronic Technology, Guilin 541004, China"},{"name":"Guangxi Key Laboratory of Automatic Detection Technology and Instrument Foundation (No.), Guilin 541004, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fangda","family":"Yu","sequence":"additional","affiliation":[{"name":"State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shijie","family":"Deng","sequence":"additional","affiliation":[{"name":"Photonics Research Centre, Guilin University of Electronic Technology, Guilin 541004, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Houquan","family":"Liu","sequence":"additional","affiliation":[{"name":"Photonics Research Centre, Guilin University of Electronic Technology, Guilin 541004, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Libo","family":"Yuan","sequence":"additional","affiliation":[{"name":"Photonics Research Centre, Guilin University of Electronic Technology, Guilin 541004, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jie","family":"Zheng","sequence":"additional","affiliation":[{"name":"State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hongchang","family":"Deng","sequence":"additional","affiliation":[{"name":"Photonics Research Centre, Guilin University of Electronic Technology, Guilin 541004, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2019,6,3]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"333","DOI":"10.1016\/j.measurement.2013.11.007","article-title":"A review of recent development and applications of plastic fiber optic displacement sensors","volume":"48","author":"Yang","year":"2014","journal-title":"Measurement"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"1408","DOI":"10.1109\/TIM.2010.2085270","article-title":"Modeling of Light Intensity-Modulated Fiber-Optic Displacement Sensors","volume":"60","author":"Polygerinos","year":"2011","journal-title":"IEEE Trans. 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