{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,9]],"date-time":"2026-04-09T12:22:23Z","timestamp":1775737343560,"version":"3.50.1"},"reference-count":40,"publisher":"MDPI AG","issue":"4","license":[{"start":{"date-parts":[[2022,2,10]],"date-time":"2022-02-10T00:00:00Z","timestamp":1644451200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>A linear electromagnetic energy harvesting device for underwater applications, fabricated with a simple manufacturing process, was developed to operate with movement frequencies from 0.1 to 0.4 Hz. The generator has two coils, and the effect of the combination of the two coils was investigated. The experimental study has shown that the energy capture system was able to supply energy to several ocean sensors, producing 7.77 mJ per second with wave movements at 0.4 Hz. This study shows that this energy is enough to restore the energy used by the battery or the capacitor and continue supplying energy to the sensors used in the experimental work. For an ocean wave frequency of 0.4 Hz, the generator can supply power to 8 sensors or 48 sensors, depending on the energy consumed and its optimization.<\/jats:p>","DOI":"10.3390\/s22041341","type":"journal-article","created":{"date-parts":[[2022,2,11]],"date-time":"2022-02-11T02:40:17Z","timestamp":1644547217000},"page":"1341","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":27,"title":["Underwater Energy Harvesting to Extend Operation Time of Submersible Sensors"],"prefix":"10.3390","volume":"22","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3633-6836","authenticated-orcid":false,"given":"Carlos L.","family":"Faria","sequence":"first","affiliation":[{"name":"CMEMS-UMinho, Campus de Azur\u00e9m, University of Minho, 4800-058 Guimar\u00e3es, Portugal"},{"name":"LABBELS\u2013Associate Laboratory, 4710-057 Braga, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1120-9312","authenticated-orcid":false,"given":"Marcos S.","family":"Martins","sequence":"additional","affiliation":[{"name":"CMEMS-UMinho, Campus de Azur\u00e9m, University of Minho, 4800-058 Guimar\u00e3es, Portugal"},{"name":"LABBELS\u2013Associate Laboratory, 4710-057 Braga, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3826-6413","authenticated-orcid":false,"given":"Tiago","family":"Matos","sequence":"additional","affiliation":[{"name":"CMEMS-UMinho, Campus de Azur\u00e9m, University of Minho, 4800-058 Guimar\u00e3es, Portugal"},{"name":"LABBELS\u2013Associate Laboratory, 4710-057 Braga, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3428-637X","authenticated-orcid":false,"given":"Rui","family":"Lima","sequence":"additional","affiliation":[{"name":"METRICS-UMinho, Campus de Azur\u00e9m, University of Minho, 4804-533 Guimar\u00e3es, Portugal"},{"name":"CEFT, Transport Phenomena Research Center, University of Porto, 4200-465 Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1830-0525","authenticated-orcid":false,"given":"Jo\u00e3o M.","family":"Miranda","sequence":"additional","affiliation":[{"name":"CEFT, Transport Phenomena Research Center, University of Porto, 4200-465 Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8441-3264","authenticated-orcid":false,"given":"Lu\u00eds M.","family":"Gon\u00e7alves","sequence":"additional","affiliation":[{"name":"CMEMS-UMinho, Campus de Azur\u00e9m, University of Minho, 4800-058 Guimar\u00e3es, Portugal"},{"name":"LABBELS\u2013Associate Laboratory, 4710-057 Braga, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2022,2,10]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Martins, M.S., Barardo, C., Matos, T., Gon\u00e7alves, L.M., Cabral, J., Silva, A., and Jesus, S.M. 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