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