Piezoelctric d33 mode diaphragm energy harvester for self-powered sensor application

Piezoelctric d33 mode diaphragm energy harvester for self-powered sensor application

This work presents the design, fabrication, and characterization of an energy harvester using a piezoelectric freestanding bulk diaphragm as the sensing element. The diaphragm containing the spiral electrode operates in d33 mode, which is different from the commonly used d31 mode diaphragm. The pola...

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Bibliographic Details
Main Authors: Liu, Haobing, Shen, Zhiyuan, Liu, Shuwei, Prakash, Kottapalli Ajay Giri, Miao, Jianmin, Woh, Lye Sun
Other Authors: School of Mechanical and Aerospace Engineering
Format: Conference or Workshop Item
Language:English
Published: 2013
Subjects:
DRNTU::Engineering::Mechanical engineering
Online Access:https://hdl.handle.net/10356/99053
http://hdl.handle.net/10220/12804
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Institution: Nanyang Technological University
Language: English
Description
Summary:This work presents the design, fabrication, and characterization of an energy harvester using a piezoelectric freestanding bulk diaphragm as the sensing element. The diaphragm containing the spiral electrode operates in d33 mode, which is different from the commonly used d31 mode diaphragm. The polarization in the diaphragm has a complex distribution that follows to the poling field induced by the double spiral electrode. The matching load impedance and the optimized working frequency were characterized.

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