An innovative tri-directional broadband piezoelectric energy harvester

Wei Jiun Su, Jean Zu

Research output: Contribution to journalArticlepeer-review

81 Scopus citations

Abstract

This paper presents a tri-directional piezoelectric energy harvester that is able to harvest vibration energy over a wide bandwidth from three orthogonal directions. The harvester consists of a main beam, an auxiliary beam, and a spring-mass system, with magnets integrated to introduce nonlinear force and couple the three sub-systems. Theoretical analysis and experiments were performed at constant acceleration under frequency sweeps to acquire frequency responses. The experimental results show that the voltage can achieve more than 2 V over more than 5 Hz of bandwidth with 1 MΩ load in the three orthogonal directions.

Original languageEnglish
Article number203901
JournalApplied Physics Letters
Volume103
Issue number20
DOIs
StatePublished - 11 Nov 2013

Fingerprint

Dive into the research topics of 'An innovative tri-directional broadband piezoelectric energy harvester'. Together they form a unique fingerprint.

Cite this