Research on Active Absorption Using Piezoelectric Ceramic

Piezoelectric ceramic (PZT) is used as the main material of the transducer, energy exchanger, arrester etc. and used in a control system in sound and vibration because of its excellent mechanical and electrical coupling performance, based on which, in this paper, a new active absorption system is de...

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Bibliographic Details
Published in:Journal of Low Frequency Noise, Vibration and Active Control Vibration and Active Control, 2007-03, Vol.26 (1), p.29-41
Main Authors: Congyun, Zhu, Zeqiang, Zhao, Qibai, Huang
Format: Article
Language:English
Subjects:
Acoustics
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Noise: its effects and control
Physics
Solid mechanics
Structural and continuum mechanics
Vibration, mechanical wave, dynamic stability (aeroelasticity, vibration control...)
Citations: Items that this one cites
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Summary:Piezoelectric ceramic (PZT) is used as the main material of the transducer, energy exchanger, arrester etc. and used in a control system in sound and vibration because of its excellent mechanical and electrical coupling performance, based on which, in this paper, a new active absorption system is designed in which the piezoelectric ceramic is used as the absorption material. Two equal distance microphones are placed in the front of the piezoelectric ceramic in order to measure the incident plane wave. Then, a voltage is applied on the piezoelectric ceramic in order to make the reflected wave zero using the adaptive controlling. Finally, an experiment is carried out and a good absorption effect attained. The experimental results denote that the theory is correct and practical.
ISSN:0263-0923
1461-3484
2048-4046
DOI:10.1260/026309207781487484