{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,31]],"date-time":"2026-01-31T17:14:23Z","timestamp":1769879663036,"version":"3.49.0"},"reference-count":21,"publisher":"MDPI AG","issue":"19","license":[{"start":{"date-parts":[[2023,10,7]],"date-time":"2023-10-07T00:00:00Z","timestamp":1696636800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"project of outstanding young and middle-aged science and technology innovation teams of colleges and universities in Hubei province","award":["T201907"],"award-info":[{"award-number":["T201907"]}]},{"name":"project of outstanding young and middle-aged science and technology innovation teams of colleges and universities in Hubei province","award":["2021EHB018"],"award-info":[{"award-number":["2021EHB018"]}]},{"DOI":"10.13039\/501100018806","name":"International Science and Technology Cooperation Key Research and Development Program of Science and Technology Agency in Hubei Province","doi-asserted-by":"publisher","award":["T201907"],"award-info":[{"award-number":["T201907"]}],"id":[{"id":"10.13039\/501100018806","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100018806","name":"International Science and Technology Cooperation Key Research and Development Program of Science and Technology Agency in Hubei Province","doi-asserted-by":"publisher","award":["2021EHB018"],"award-info":[{"award-number":["2021EHB018"]}],"id":[{"id":"10.13039\/501100018806","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>In order to investigate the factors affecting the acoustic performance of the extrinsic Fabry\u2013Perot interferometer (EFPI) fiber-optic acoustic pressure sensor and to effectively improve its detection capability, this paper enhances the sensor\u2019s detection sensitivity by adding more sensitized rings to its acoustic pressure-sensitive film. Furthermore, a novel real-time coupled acoustic test method is proposed to simultaneously monitor the changes in the spectral and acoustic metrics of the sensor to characterize its overall performance. Finally, an EFPI-type fiber-optic acoustic pressure sensor was developed based on the Micro-Optical Electro-Mechanical System (MOEMS). The acoustic tests indicate that the optimized fiber-optic acoustic pressure sensor has a sensitivity as high as 2253.2 mV\/Pa, and the acoustic overload point (AOP) and signal-to-noise ratios (SNRs) can reach 108.85 dB SPL and 79.22 dB, respectively. These results show that the sensor produced through performance characterization experiments and subsequent optimization has a very high acoustic performance index, which provides a scientific theoretical basis for improving the overall performance of the sensor and will have broad application prospects in the field of acoustic detection.<\/jats:p>","DOI":"10.3390\/s23198300","type":"journal-article","created":{"date-parts":[[2023,10,9]],"date-time":"2023-10-09T06:16:48Z","timestamp":1696832208000},"page":"8300","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["The Performance Characterization and Optimization of Fiber-Optic Acoustic Pressure Sensors Based on the MOEMS Sensitized Structure"],"prefix":"10.3390","volume":"23","author":[{"given":"Ruling","family":"Zhou","sequence":"first","affiliation":[{"name":"Laboratory of Optoelectronics and Sensor (OES Lab), Hubei University of Technology, Wuhan 430068, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chenggang","family":"Guan","sequence":"additional","affiliation":[{"name":"Laboratory of Optoelectronics and Sensor (OES Lab), Hubei University of Technology, Wuhan 430068, China"},{"name":"AOV Energy LLC, Wuhan 430068, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hui","family":"Lv","sequence":"additional","affiliation":[{"name":"School of Science, Hubei University of Technology, Wuhan 430068, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shasha","family":"Li","sequence":"additional","affiliation":[{"name":"Laboratory of Optoelectronics and Sensor (OES Lab), Hubei University of Technology, Wuhan 430068, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Puchu","family":"Lv","sequence":"additional","affiliation":[{"name":"Laboratory of Optoelectronics and Sensor (OES Lab), Hubei University of Technology, Wuhan 430068, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Haixin","family":"Qin","sequence":"additional","affiliation":[{"name":"Laboratory of Optoelectronics and Sensor (OES Lab), Hubei University of Technology, Wuhan 430068, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wenxiu","family":"Chu","sequence":"additional","affiliation":[{"name":"Laboratory of Optoelectronics and Sensor (OES Lab), Hubei University of Technology, Wuhan 430068, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yikai","family":"Zhou","sequence":"additional","affiliation":[{"name":"Laboratory of Optoelectronics and Sensor (OES Lab), Hubei University of Technology, Wuhan 430068, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2370-1542","authenticated-orcid":false,"given":"Yihao","family":"Zhang","sequence":"additional","affiliation":[{"name":"Laboratory of Optoelectronics and Sensor (OES Lab), Hubei University of Technology, Wuhan 430068, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xiaoqiang","family":"Li","sequence":"additional","affiliation":[{"name":"Laboratory of Optoelectronics and Sensor (OES Lab), Hubei University of Technology, Wuhan 430068, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2023,10,7]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1761","DOI":"10.1364\/AO.16.001761","article-title":"Optical fiber acoustic sensor","volume":"16","author":"Bucaro","year":"1977","journal-title":"Appl. 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