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

self-tuning

Energy harvesting

Piezoelectric

Author

Henrik Staaf

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

Elof Köhler

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

Anderson David Smith

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

Peter Folkow

Chalmers, Mechanics and Maritime Sciences, Dynamics

Peter Enoksson

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

PowerMEMS 2017, The 17th international conference on Micro and Nanotechnology for Power Generation and Energy Conservation Application, November 14-17, Kanazawa, Japan

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

More information

Latest update

3/15/2019