Detail publikace

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

KUNZ, J. FIALKA, J. BENEŠ, P. HAVRÁNEK Z.

Originální název

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

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

Systems 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.

Klíčová slova

Energy harvesting, piezo-harvester, Measurement system, vibration

Autoři

KUNZ, J.; FIALKA, J.; BENEŠ, P.; HAVRÁNEK Z.

Vydáno

5. 9. 2018

Nakladatel

IOP Publishing

Místo

Belfast

ISSN

1742-6596

Periodikum

Journal of Physics: Conference Series

Ročník

1065

Číslo

1

Stát

Spojené království Velké Británie a Severního Irska

Strany od

1

Strany do

4

Strany počet

4

URL

http://iopscience.iop.org/article/10.1088/1742-6596/1065/20/202008

Plný text v Digitální knihovně

http://hdl.handle.net/11012/137094

BibTex

@inproceedings{BUT150413,
  author="Jan {Kunz} and Jiří {Fialka} and Petr {Beneš} and Zdeněk {Havránek}",
  title="An Automated measurement system for measuring an overall power efficiency and a characterisation of piezo harvesters",
  booktitle="Congress Proceedings as Institute of Physics",
  year="2018",
  journal="Journal of Physics: Conference Series",
  volume="1065",
  number="1",
  pages="1--4",
  publisher="IOP Publishing",
  address="Belfast",
  doi="10.1088/1742-6596/1065/20/202008",
  issn="1742-6596",
  url="http://iopscience.iop.org/article/10.1088/1742-6596/1065/20/202008"
}