A Wide Band Frequency-adjustable Piezoelectric Energy Harvester: an Experimental Study (open access)

A Wide Band Frequency-adjustable Piezoelectric Energy Harvester: an Experimental Study

Piezoelectric energy harvester has become a new powering choice for small electronic device. Due to its piezoelectric effect, electric energy can be obtained from ambient vibrations. This thesis is intending to build a frequency-adjustable piezoelectric energy harvester system. The system is structured with two piezoelectric bimorph beams, which are connected to each other by a spring. The feasibility of the frequency-adjustable piezoelectric energy harvester has been proved by investigating effects of the spring, loading mass and impedance on the operation frequencies.
Date: August 2012
Creator: Lee, Pohua
System: The UNT Digital Library