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Your search keyword '"Zhao, Zeqiang"' showing total 3 results
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3 results on '"Zhao, Zeqiang"'

2. Research on Active Absorption Using Piezoelectric Ceramic

Author

Huang Qibai, Zhu Cong-yun, and Zhao Zeqiang

Subjects
Absorption (acoustics), Engineering, Piezoelectric coefficient, Acoustics and Ultrasonics, business.industry, Piezoelectric accelerometer, Mechanical Engineering, Acoustics, Building and Construction, Piezoelectricity, Geophysics, Transducer, Optics, Mechanics of Materials, visual_art, Ceramic resonator, visual_art.visual_art_medium, PMUT, Ceramic, business, Civil and Structural Engineering
Abstract

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.

Published
2007

3. Research on active absorption using piezoelectric ceramic.

Author

Zhu Congyun, Zhao Zeqiang, and Huang Qibai

Subjects
PIEZOELECTRIC ceramics, PIEZOELECTRICITY, ABSORPTION, NOISE control, NOISE pollution, CRYSTALLOGRAPHY, INDUSTRIAL chemistry
Abstract

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. [ABSTRACT FROM AUTHOR]

Published
2007
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