An Automated measurement system for measuring an overall power efficiency and a characterisation of piezo harvesters

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dc.contributor.authorKunz, Jancs
dc.contributor.authorFialka, Jiřícs
dc.contributor.authorBeneš, Petrcs
dc.contributor.authorHavránek, Zdeněkcs
dc.coverage.issue1cs
dc.coverage.volume1065cs
dc.date.accessioned2018-12-04T15:52:04Z
dc.date.available2018-12-04T15:52:04Z
dc.date.issued2018-09-05cs
dc.description.abstractSystems for measurement power characteristics of piezo harvesters in dependence on a frequency and a load resistance are not commonly used due its complexity. Therefore, the parameters are usually measured manually near its resonant frequency. In some cases, it is convenient to measure the characteristics in a broader range of parameters. Then, in order to achieve more precise results and effective measurement we decided to develop our own measurement system. The system controls an effective value of vibrations, sets a frequency and a load resistance for measuring a power generated by a piezo harvester and measures a tip displacement of the harvester. These quantities are used for a characterisation of piezo harvesters. Moreover, the voltage and current on vibration exciter are measured to evaluate the overall efficiency of the harvester. The system was tested on a harvester MIDE PPA-1001 for various added weights and vibration levels from 0.1 to 0.5 g. The measured data analysed and the efficiency was calculated as a ratio between a vibration power consumed by the harvester and its electrical output. The evaluated overall efficiency varies between 10 and 15 % nearby its optimal working conditions.en
dc.formattextcs
dc.format.extent1-4cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationJournal of Physics: Conference Series. 2018, vol. 1065, issue 1, p. 1-4.en
dc.identifier.doi10.1088/1742-6596/1065/20/202008cs
dc.identifier.issn1742-6596cs
dc.identifier.other150413cs
dc.identifier.urihttp://hdl.handle.net/11012/137094
dc.language.isoencs
dc.publisherIOP Publishingcs
dc.relation.ispartofJournal of Physics: Conference Seriescs
dc.relation.urihttp://iopscience.iop.org/article/10.1088/1742-6596/1065/20/202008cs
dc.rightsCreative Commons Attribution 3.0 Unportedcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1742-6596/cs
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/cs
dc.subjectEnergy harvestingen
dc.subjectpiezo-harvesteren
dc.subjectMeasurement systemen
dc.subjectvibrationen
dc.titleAn Automated measurement system for measuring an overall power efficiency and a characterisation of piezo harvestersen
dc.type.driverconferenceObjecten
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-150413en
sync.item.dbtypeVAVen
sync.item.insts2020.03.31 09:58:32en
sync.item.modts2020.03.31 07:44:47en
thesis.grantorVysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií. Ústav automatizace a měřicí technikycs
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Kybernetika pro materiálové vědycs
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