Next Article in Journal
Smart CEI Moncloa: An IoT-based Platform for People Flow and Environmental Monitoring on a Smart University Campus
Previous Article in Journal
Thermal Transmission through Existing Building Enclosures: Destructive Monitoring in Intermediate Layers versus Non-Destructive Monitoring with Sensors on Surfaces
Article Menu
Issue 12 (December) cover image

Export Article

Open AccessArticle
Sensors 2017, 17(12), 2850; https://doi.org/10.3390/s17122850

Analysis on Coupled Vibration of a Radially Polarized Piezoelectric Cylindrical Transducer

Shaanxi Key Laboratory of Ultrasonics, Institute of Applied Acoustics, Shaanxi Normal University, Xi’an 710119, China
*
Author to whom correspondence should be addressed.
Received: 11 October 2017 / Revised: 25 November 2017 / Accepted: 25 November 2017 / Published: 8 December 2017
(This article belongs to the Section Physical Sensors)
View Full-Text   |   Download PDF [4891 KB, uploaded 8 December 2017]   |  

Abstract

Coupled vibration of a radially polarized piezoelectric cylindrical transducer is analyzed with the mechanical coupling coefficient method. The method has been utilized to analyze the metal cylindrical transducer and the axially polarized piezoelectric cylindrical transducer. In this method, the mechanical coupling coefficient is introduced and defined as the stress ratio in different directions. Coupled vibration of the cylindrical transducer is regarded as the interaction of the plane radial vibration of a ring and the longitudinal vibration of a tube. For the radially polarized piezoelectric cylindrical transducer, the radial and longitudinal electric admittances as functions of mechanical coupling coefficients and angular frequencies are derived, respectively. The resonance frequency equations are obtained. The dependence of resonance frequency and mechanical coupling coefficient on aspect ratio is studied. Vibrational distributions on the surfaces of the cylindrical transducer are presented with experimental measurement. On the support of experiments, this work is verified and provides a theoretical foundation for the analysis and design of the radially polarized piezoelectric cylindrical transducer. View Full-Text
Keywords: piezoelectric cylindrical transducer; coupled vibration; mechanical coupling coefficient; resonance frequency piezoelectric cylindrical transducer; coupled vibration; mechanical coupling coefficient; resonance frequency
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Xu, J.; Lin, S.; Ma, Y.; Tang, Y. Analysis on Coupled Vibration of a Radially Polarized Piezoelectric Cylindrical Transducer. Sensors 2017, 17, 2850.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top