{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,14]],"date-time":"2026-03-14T02:53:29Z","timestamp":1773456809484,"version":"3.50.1"},"reference-count":57,"publisher":"MDPI AG","issue":"5","license":[{"start":{"date-parts":[[2012,5,18]],"date-time":"2012-05-18T00:00:00Z","timestamp":1337299200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>In this paper we summarize the research activities at the Instituto de Telecomunica\u00e7\u00f5es\u2014P\u00f3lo de Aveiro and University of Aveiro, in the field of fiber Bragg grating based sensors and their applications in dynamic measurements for Structural Health Monitoring of slender structures such as towers. In this work we describe the implementation of an optical biaxial accelerometer based on fiber Bragg gratings inscribed on optical fibers. The proof-of-concept was done with the dynamic monitoring of a reinforced concrete structure and a slender metallic telecommunication tower. Those structures were found to be suitable to demonstrate the feasibility of FBG accelerometers to obtain the structures\u2019 natural frequencies, which are the key parameters in Structural Health Monitoring and in the calibration of numerical models used to simulate the structure behavior.<\/jats:p>","DOI":"10.3390\/s120506629","type":"journal-article","created":{"date-parts":[[2012,5,18]],"date-time":"2012-05-18T11:26:32Z","timestamp":1337340392000},"page":"6629-6644","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":27,"title":["Dynamic Structural Health Monitoring of Slender Structures Using Optical Sensors"],"prefix":"10.3390","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9129-3539","authenticated-orcid":false,"given":"Paulo","family":"Antunes","sequence":"first","affiliation":[{"name":"Instituto de Telecomunica\u00e7\u00f5es and Departamento de F\u00edsica da Universidade de Aveiro, 3810 193 Aveiro, Portugal"}]},{"given":"Rui","family":"Travanca","sequence":"additional","affiliation":[{"name":"Departamento de Engenharia Civil da Universidade de Aveiro, 3810 193 Aveiro, Portugal"}]},{"given":"Hugo","family":"Rodrigues","sequence":"additional","affiliation":[{"name":"Departamento de Engenharia Civil da Universidade de Aveiro, 3810 193 Aveiro, Portugal"}]},{"given":"Jos\u00e9","family":"Melo","sequence":"additional","affiliation":[{"name":"Departamento de Engenharia Civil da Universidade de Aveiro, 3810 193 Aveiro, Portugal"}]},{"given":"Jos\u00e9","family":"Jara","sequence":"additional","affiliation":[{"name":"Facultad de Ingenier\u00eda Civil de la Universidad Michoacana San Nicol\u00e1s de Hidalgo, 58040 Morelia, Michoac\u00e1n, Mexico"}]},{"given":"Humberto","family":"Varum","sequence":"additional","affiliation":[{"name":"Departamento de Engenharia Civil da Universidade de Aveiro, 3810 193 Aveiro, Portugal"}]},{"given":"Paulo","family":"Andr\u00e9","sequence":"additional","affiliation":[{"name":"Instituto de Telecomunica\u00e7\u00f5es and Departamento de F\u00edsica da Universidade de Aveiro, 3810 193 Aveiro, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2012,5,18]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"259","DOI":"10.1061\/(ASCE)BE.1943-5592.0000150","article-title":"Output-only system identification of posttensioned segmental concrete highway bridges","volume":"16","author":"Altunisik","year":"2011","journal-title":"J. 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