Conference Publication Details
Mandatory Fields
Jackson, N;Stam, F;Olszewski, OZ;Houlihan, R;Mathewson, A
EUROSENSORS 2015
Broadening the bandwidth of piezoelectric energy harvesters using liquid filled mass
2015
January
Validated
1
WOS: 16 ()
Optional Fields
328
332
A narrow bandwidth is one of the most challenging issues that vibrational energy harvesters have to overcome. This paper demonstrates a novel method of broadening the bandwidth without significantly reducing the peak output voltage. The method uses a liquid filled mass to create a sliding mass effect in order to broaden the bandwidth. The fluid mass increased the full-width-half-maximum (FWHM) value from 1.6 Hz to 4.45 Hz with no significant decrease in peak-to-peak voltage when compared to an empty mass. The fluid filled mass has a non-linear mass distribution during low frequency, high acceleration applications. (C) 2015 The Authors. Published by Elsevier Ltd.
10.1016/j.proeng.2015.08.627
Grant Details