{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,8]],"date-time":"2025-11-08T17:44:22Z","timestamp":1762623862296},"reference-count":16,"publisher":"SAGE Publications","issue":"3","license":[{"start":{"date-parts":[[2017,3,1]],"date-time":"2017-03-01T00:00:00Z","timestamp":1488326400000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["International Journal of Distributed Sensor Networks"],"published-print":{"date-parts":[[2017,3]]},"abstract":"<jats:p> Reducing energy consumption is mandatory in self-powered sensor nodes of wireless sensor networks that obtain all their energy from the environment. In this direction, one first step to optimize the network is to accurately measure the total energy harvested, which will determine the power available for sensor consumption. We present here a technique based on an embedded circuit with an ultra-low-power microcontroller to accurately measure the efficiency of flat-panel solar thermoelectric generators operating with environmental temperature gradients. Experimental tests showed that when a voltage of 180 mV (best case in an environmental flat-panel solar thermoelectric generators) is applied to the input of the DC\u2013DC converter, the proposed technique eliminates a measurement error of 33% when compared with the conventional single supercapacitor strategy. <\/jats:p>","DOI":"10.1177\/1550147716685423","type":"journal-article","created":{"date-parts":[[2017,3,14]],"date-time":"2017-03-14T10:20:55Z","timestamp":1489486855000},"page":"155014771668542","update-policy":"http:\/\/dx.doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":6,"title":["Measurement of the electric energy storage capacity in solar thermoelectric generators\u2019 energy harvesting modules"],"prefix":"10.1177","volume":"13","author":[{"given":"Pedro C","family":"Dias","sequence":"first","affiliation":[{"name":"DAELE - Department of Electronics, Federal University of Technology \u2013 Paran\u00e1, Corn\u00e9lio Proc\u00f3pio, Brazil"},{"name":"Department of Semiconductors, Instruments and Photonics, School of Electrical and Computer Engineering, University of Campinas, Campinas, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fl\u00e1vio JO","family":"Morais","sequence":"additional","affiliation":[{"name":"Faculty of Sciences and Engineering, UNESP, Tup\u00e3, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Luis FC","family":"Duarte","sequence":"additional","affiliation":[{"name":"Department of Electrical Engineering, State University of Londrina, Londrina, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Maria Bernadete","family":"M Fran\u00e7a","sequence":"additional","affiliation":[{"name":"DAELE - 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