Study on Sound Reflection Control using an Active Sound Absorber

被引：0
|
作者：
Chang, Woosuk
Gweon, Dae Yong
机构：
来源：
JOURNAL OF THE ACOUSTICAL SOCIETY OF KOREA | 2009年 / 28卷 / 08期
关键词：
Active Sound Absorber; Feedback Control; Piezocomposite; Acoustic Reflection;
D O I：
暂无
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
This paper reviews a study about sound reflection control using an active sound absorber. An active sound absorber includes sound transmitting and receiving piezocomposite sensor layers molded by water tight epoxy, and connected with a feedback controller. The multi-layer sensors and the controller consists a closed feedback loop, whose intrinsic characteristics shows excellent impedance matching performance within specified frequency band, and consequently, minimizes reflection waves. Multilayer sound transmission model is derived based on one dimensional model, and its performance is verified with experiment using a pulse tube setup.
引用
收藏
页码：806 / 814
页数：9
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