Scaling effects for piezoelectric energy harvesters

Dibin Zhu, S. P. Beeby

    Research output: Contribution to conferencePaper

    1 Citation (Scopus)
    40 Downloads (Pure)

    Abstract

    This paper presents a fundamental investigation into scaling effects for the mechanical properties and electrical output power of piezoelectric vibration energy harvesters. The mechanical properties investigated in this paper include resonant frequency of the harvester and its frequency tunability, which is essential for the harvester to operate efficiently under broadband excitations. Electrical output power studied includes cases when the harvester is excited under both constant vibration acceleration and constant vibration amplitude. The energy harvester analysed in this paper is based on a cantilever structure, which is typical of most vibration energy harvesters. Both detailed mathematical derivation and simulation are presented. Furthermore, various piezoelectric materials used in MEMS and non-MEMS harvesters are also considered in the scaling analysis. © (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE).
    Original languageEnglish
    DOIs
    Publication statusPublished - 21 May 2015
    EventSmart Sensors, Actuators, and MEMS VII; and Cyber Physical Systems - Barcelona, Spain
    Duration: 4 May 20154 May 2015

    Conference

    ConferenceSmart Sensors, Actuators, and MEMS VII; and Cyber Physical Systems
    Country/TerritorySpain
    CityBarcelona
    Period4/05/154/05/15

    Keywords

    • scaling
    • piezoelectric
    • vibration energy harvesting

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