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Impact-driven up-conversion in piezoelectric MEMS energy harvesters with pulsed excitation
RISE - Research Institutes of Sweden, ICT, Acreo.
RISE - Research Institutes of Sweden, ICT, Acreo.
RISE - Research Institutes of Sweden, ICT, Acreo.
2018 (English)In: Journal of Physics: Conference Series, 2018, no 1, article id 012106Conference paper, Published paper (Refereed)
Abstract [en]

The potential of impact-driven frequency up-conversion in a MEMS EH is evaluated using numerical simulations. The investigated design is compared to a conventional cantilever EH in terms of output power and loss rate. The upshifting can lead to significantly increased output power at a similar loss rate but as the time scale for the loss is long, the benefit is limited. This also requires an effective upshifting process. The design of the impact introduces a length scale that must be selected with excitation, gravity, and pre-stress taken into account. This makes this type of EH application-dependent as a non-optimal choice may result in low output power.

Place, publisher, year, edition, pages
2018. no 1, article id 012106
Keywords [en]
Frequency converters, Nanotechnology, Energy Harvester, Frequency up conversion, Length scale, Optimal choice, Output power, Piezoelectric MEMS, Pulsed excitation, Up conversion, Energy conversion
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-34960DOI: 10.1088/1742-6596/1052/1/012106Scopus ID: 2-s2.0-85051348585OAI: oai:DiVA.org:ri-34960DiVA, id: diva2:1245531
Conference
17th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications, PowerMEMS 2017, 14 November 2017 through 17 November 2017
Available from: 2018-09-05 Created: 2018-09-05 Last updated: 2018-09-05Bibliographically approved

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