Piezoelectric Detection and Response Characteristics of Barium Titanate Unimorph Cantilevers Under AC Electric Fields

doi:10.15344/2455-2372/2015/103

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International Journal of Metallurgical & Materials Engineering Volume 1 (2015), Article ID 1:IJMME-103, 4 pages
http://dx.doi.org/10.15344/2455-2372/2015/103

Research Article

Piezoelectric Detection and Response Characteristics of Barium Titanate Unimorph Cantilevers Under AC Electric Fields

Fumio Narita^* and Yasuhide Shindo

Department of Materials Processing, Graduate School of Engineering, Tohoku University, Aoba-yama 6-6-02, Sendai 980-8579, Japan

Corresponding Author Details: Dr. Fumio Narita, Department of Materials Processing, Graduate School of Engineering, Tohoku University, Aoba-yama 6-6-02, Sendai 980-8579, Japan; E-mail: narita@material.tohoku.ac.jp

Received: 11 March 2015; Accepted: 18 April 2015; Published: 20 April 2015

Citation: Narita F, Shindo Y (2015) Piezoelectric Detection and Response Characteristics of Barium Titanate Unimorph Cantilevers Under AC Electric Fields. Int J Metall Mater Eng 1: 103. doi: http://dx.doi.org/10.15344/2455-2372/2015/103

Funding: This work was supported by the Ministry of Education, Culture, Sports, Science and Technology of Japan under the Grant-in-Aid for Scientific Research (C).

Copyright: © 2015 Narita et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

This paper studies the detection and response characteristics of barium titanate (BT) unimorph cantilevers under alternating current (AC) electric fields both numerically and experimentally. The unimorph cantilever consists of the BT layer and Cu shim, and the BT layer has sensing, grounding and driving electrodes. The deflection and output voltage of the cantilevers were predicted by three dimensional finite element analysis (FEA). The deflection and output voltage were also measured, and a comparison was made between prediction and experiment. The deflection, stress, output voltage and output power were then discussed.

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