Verification of Self-Tuning 4DOF Piezoelectric Energy Harvester with Enhanced Bandwidth
Paper in proceeding, 2018

In this paper, we present an analytical model to predict enhanced bandwidth for a piezoelectric energy harvester with self-tuning, accomplished by a sliding mass. The model predicts that by implementing asymmetry of different piezoelectric cantilever lengths , the bandwidth can theoretically approach 60 Hz. Validation measurements demonstrate an increased 3dB bandwidth up to 21 Hz with 150 mW, by configuration 23/17 mm in open length – providing sufficient power for a ZigBee to continually transmit.

Energy harvesting

Piezoelectric

self-tuning

Author

Henrik Staaf

Chalmers, Microtechnology and Nanoscience (MC2), Electronics Material and Systems

Elof Köhler

Chalmers, Microtechnology and Nanoscience (MC2), Electronics Material and Systems

Anderson David Smith

Chalmers, Microtechnology and Nanoscience (MC2), Electronics Material and Systems

Peter Folkow

Chalmers, Mechanics and Maritime Sciences (M2), Dynamics

Peter Enoksson

Chalmers, Microtechnology and Nanoscience (MC2), Electronics Material and Systems

Journal of Physics: Conference Series

17426588 (ISSN) 17426596 (eISSN)

To be published in Journal of Physics Conference S

Driving Forces

Sustainable development

Areas of Advance

Transport

Energy

Subject Categories

Energy Engineering

Other Natural Sciences

DOI

10.1088/1742-6596/1052/1/012095

More information

Latest update

7/25/2023