{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,23]],"date-time":"2026-03-23T19:37:02Z","timestamp":1774294622545,"version":"3.50.1"},"reference-count":52,"publisher":"MDPI AG","issue":"16","license":[{"start":{"date-parts":[[2022,8,9]],"date-time":"2022-08-09T00:00:00Z","timestamp":1660003200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"FUNCAP\/CEGAS","award":["UIDB\/50008\/2020-UIDP\/50008\/2020"],"award-info":[{"award-number":["UIDB\/50008\/2020-UIDP\/50008\/2020"]}]},{"name":"FUNCAP\/CEGAS","award":["UIDB\/50025\/2020"],"award-info":[{"award-number":["UIDB\/50025\/2020"]}]},{"name":"FUNCAP\/CEGAS","award":["UIDP\/50025\/2020"],"award-info":[{"award-number":["UIDP\/50025\/2020"]}]},{"name":"FUNCAP\/CEGAS","award":["UID\/EEA\/50008\/2019"],"award-info":[{"award-number":["UID\/EEA\/50008\/2019"]}]},{"name":"FUNCAP\/CEGAS","award":["SFRH\/BD\/146295\/2019"],"award-info":[{"award-number":["SFRH\/BD\/146295\/2019"]}]},{"name":"FCT\/MEC","award":["UIDB\/50008\/2020-UIDP\/50008\/2020"],"award-info":[{"award-number":["UIDB\/50008\/2020-UIDP\/50008\/2020"]}]},{"name":"FCT\/MEC","award":["UIDB\/50025\/2020"],"award-info":[{"award-number":["UIDB\/50025\/2020"]}]},{"name":"FCT\/MEC","award":["UIDP\/50025\/2020"],"award-info":[{"award-number":["UIDP\/50025\/2020"]}]},{"name":"FCT\/MEC","award":["UID\/EEA\/50008\/2019"],"award-info":[{"award-number":["UID\/EEA\/50008\/2019"]}]},{"name":"FCT\/MEC","award":["SFRH\/BD\/146295\/2019"],"award-info":[{"award-number":["SFRH\/BD\/146295\/2019"]}]},{"name":"FCT","award":["UIDB\/50008\/2020-UIDP\/50008\/2020"],"award-info":[{"award-number":["UIDB\/50008\/2020-UIDP\/50008\/2020"]}]},{"name":"FCT","award":["UIDB\/50025\/2020"],"award-info":[{"award-number":["UIDB\/50025\/2020"]}]},{"name":"FCT","award":["UIDP\/50025\/2020"],"award-info":[{"award-number":["UIDP\/50025\/2020"]}]},{"name":"FCT","award":["UID\/EEA\/50008\/2019"],"award-info":[{"award-number":["UID\/EEA\/50008\/2019"]}]},{"name":"FCT","award":["SFRH\/BD\/146295\/2019"],"award-info":[{"award-number":["SFRH\/BD\/146295\/2019"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>As corrosion has slow development, its detection at an early age could be an alternative for reducing costs of structural rehabilitation. Therefore, the employment of structural health monitoring (SHM) systems, sensing configurations collecting data over time allowing for observing changes in the properties of the materials and damage emergence, for monitoring corrosion can be a good strategy to measure the damage and to decide the better moment for intervention. Nonetheless, the current corrosion sensor technology and the high costs of the sensing system implementation are limiting this application in the field. In this work, an optical fiber Bragg grating (FBG)-based sensing system is proposed for monitoring the thickness loss of a 1020 carbon steel metal plate subjected to controlled corrosion. The natural frequency of the plate was collected as a function of the corrosion time over 3744 h. To validate the experimental results, ultrasound measures and electrochemical tests were also carried out under similar conditions. The experimental results show adequate reliability, indicating the suitable functionality of the proposed system for monitoring the thickness loss caused by corrosion in metallic structures, in comparison with traditional methods, as ultrasonic and electrochemical measures.<\/jats:p>","DOI":"10.3390\/s22165947","type":"journal-article","created":{"date-parts":[[2022,8,10]],"date-time":"2022-08-10T04:20:32Z","timestamp":1660105232000},"page":"5947","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":13,"title":["Sensing System Based on FBG for Corrosion Monitoring in Metallic Structures"],"prefix":"10.3390","volume":"22","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2670-4298","authenticated-orcid":false,"given":"Israel","family":"Sousa","sequence":"first","affiliation":[{"name":"Laboratory of Buildings Durability and Rehabilitation, Campus Russas, Federal University of Ceara, Russas 62900-000, Brazil"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6080-089X","authenticated-orcid":false,"given":"Luis","family":"Pereira","sequence":"additional","affiliation":[{"name":"I3N & Department of Physics, University of Aveiro, Campus Universit\u00e1rio de Santiago, 3810-193 Aveiro, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9905-6220","authenticated-orcid":false,"given":"Esequiel","family":"Mesquita","sequence":"additional","affiliation":[{"name":"Laboratory of Buildings Durability and Rehabilitation, Campus Russas, Federal University of Ceara, Russas 62900-000, Brazil"}]},{"given":"Vit\u00f3ria L.","family":"Souza","sequence":"additional","affiliation":[{"name":"Department of Metallurgic Engineering, Campus PICI, Federal University of Ceara, Fortaleza 60020-181, Brazil"}]},{"given":"Walney S.","family":"Ara\u00fajo","sequence":"additional","affiliation":[{"name":"Department of Metallurgic Engineering, Campus PICI, Federal University of Ceara, Fortaleza 60020-181, Brazil"}]},{"given":"Ant\u00f4nio","family":"Cabral","sequence":"additional","affiliation":[{"name":"Laboratory of Buildings Durability and Rehabilitation, Campus Russas, Federal University of Ceara, Russas 62900-000, Brazil"},{"name":"Department of Structural Engineering and Civil Construction, Campus PICI, Federal University of Ceara, Fortaleza 60020-181, Brazil"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8176-7953","authenticated-orcid":false,"given":"N\u00e9lia","family":"Alberto","sequence":"additional","affiliation":[{"name":"Instituto de Telecomunica\u00e7\u00f5es, University of Aveiro, Campus Universit\u00e1rio de Santiago, 3810-193 Aveiro, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0215-8701","authenticated-orcid":false,"given":"Humberto","family":"Varum","sequence":"additional","affiliation":[{"name":"CONSTRUCT-LESE, Structural Division, Department of Civil Engineering, Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9129-3539","authenticated-orcid":false,"given":"Paulo","family":"Antunes","sequence":"additional","affiliation":[{"name":"I3N & Department of Physics, University of Aveiro, Campus Universit\u00e1rio de Santiago, 3810-193 Aveiro, Portugal"},{"name":"Instituto de Telecomunica\u00e7\u00f5es, University of Aveiro, Campus Universit\u00e1rio de Santiago, 3810-193 Aveiro, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2022,8,9]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1088\/0957-0233\/21\/1\/017002","article-title":"A Structural Corrosion-Monitoring Sensor Based on a Pair of Prestrained Fiber Bragg Gratings","volume":"21","author":"Lee","year":"2010","journal-title":"Meas. 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