Broadening the bandwidth of piezoelectric energy harvesters using liquid filled mass

Nathan Jackson; Frank Stam; Oskar Z. Olszewski; Ruth Houlihan; Alan Mathewson

doi:10.1016/j.proeng.2015.08.627

Broadening the bandwidth of piezoelectric energy harvesters using liquid filled mass

Nathan Jackson
, Frank Stam
, Oskar Z. Olszewski
, Ruth Houlihan
, Alan Mathewson

Tyndall IPES (Integrated Power)

University College Cork

Research output: Contribution to journal › Article › peer-review

Abstract

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.

Original language	English
Pages (from-to)	328-332
Number of pages	5
Journal	Procedia Engineering
Volume	120
DOIs	https://doi.org/10.1016/j.proeng.2015.08.627
Publication status	Published - 2015
Event	29th European Conference on Solid-State Transducers, EUROSENSORS 2015; Freiburg; Germany; 6 September 2015 through 9 September 2015. - Freiburg, Germany Duration: 6 Sep 2015 → 9 Sep 2015

Keywords

Cantilever
Energy harvesting
Piezoelectrics
Sliding mass
Wide bandwidth

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10.1016/j.proeng.2015.08.627

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title = "Broadening the bandwidth of piezoelectric energy harvesters using liquid filled mass",

abstract = "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.",

keywords = "Cantilever, Energy harvesting, Piezoelectrics, Sliding mass, Wide bandwidth",

author = "Nathan Jackson and Frank Stam and Olszewski, \{Oskar Z.\} and Ruth Houlihan and Alan Mathewson",

note = "Publisher Copyright: {\textcopyright} 2015 The Authors. Published by Elsevier Ltd.; 29th European Conference on Solid-State Transducers, EUROSENSORS 2015; Freiburg; Germany; 6 September 2015 through 9 September 2015. ; Conference date: 06-09-2015 Through 09-09-2015",

year = "2015",

doi = "10.1016/j.proeng.2015.08.627",

language = "English",

volume = "120",

pages = "328--332",

journal = "Procedia Engineering",

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T1 - Broadening the bandwidth of piezoelectric energy harvesters using liquid filled mass

AU - Jackson, Nathan

AU - Stam, Frank

AU - Olszewski, Oskar Z.

AU - Houlihan, Ruth

AU - Mathewson, Alan

PY - 2015

Y1 - 2015

N2 - 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.

AB - 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.

KW - Cantilever

KW - Energy harvesting

KW - Piezoelectrics

KW - Sliding mass

KW - Wide bandwidth

UR - https://www.scopus.com/pages/publications/84985001706

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SN - 1877-7058

VL - 120

SP - 328

EP - 332

JO - Procedia Engineering

JF - Procedia Engineering

T2 - 29th European Conference on Solid-State Transducers, EUROSENSORS 2015; Freiburg; Germany; 6 September 2015 through 9 September 2015.

Y2 - 6 September 2015 through 9 September 2015

ER -

Broadening the bandwidth of piezoelectric energy harvesters using liquid filled mass

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Keywords

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