{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,4]],"date-time":"2026-04-04T11:30:07Z","timestamp":1775302207340,"version":"3.50.1"},"reference-count":39,"publisher":"MDPI AG","issue":"17","license":[{"start":{"date-parts":[[2019,8,22]],"date-time":"2019-08-22T00:00:00Z","timestamp":1566432000000},"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>The impact of raindrops on a dry surface leads to a splashing phenomenon that dissipates a lot of energy. To improve energy collection, a novel piezoelectric raindrop energy harvester equipped with a spoonful of water was developed. The advantages and the drawbacks of this solution were analyzed with the aid of numerical simulations. A series of experimental tests were carried out in a laboratory with simulated raindrops. Experimental results showed that the negative effect of the added water mass was exceeded by the positive effects related to the impact of the raindrop on a liquid surface. Tests carried out connecting the harvester to a resistive load showed that the prototype was able to collect more energy than a simple cantilever harvester.<\/jats:p>","DOI":"10.3390\/s19173653","type":"journal-article","created":{"date-parts":[[2019,8,23]],"date-time":"2019-08-23T10:15:07Z","timestamp":1566555307000},"page":"3653","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":26,"title":["Development of a Novel Piezoelectric Harvester Excited by Raindrops"],"prefix":"10.3390","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0896-7796","authenticated-orcid":false,"given":"Alberto","family":"Doria","sequence":"first","affiliation":[{"name":"Department of Industrial Engineering, University of Padova, 35131 Padova, Italy"}]},{"given":"Giulio","family":"Fanti","sequence":"additional","affiliation":[{"name":"Department of Industrial Engineering, University of Padova, 35131 Padova, Italy"}]},{"given":"Gino","family":"Filipi","sequence":"additional","affiliation":[{"name":"Department of Industrial Engineering, University of Padova, 35131 Padova, Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5501-3904","authenticated-orcid":false,"given":"Federico","family":"Moro","sequence":"additional","affiliation":[{"name":"Department of Industrial Engineering, University of Padova, 35131 Padova, Italy"}]}],"member":"1968","published-online":{"date-parts":[[2019,8,22]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"15038","DOI":"10.1088\/0964-1726\/17\/01\/015038","article-title":"Harvesting raindrop energy: Theory","volume":"17","author":"Guigon","year":"2008","journal-title":"Smart Mater. 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