发明申请
US20120152650A1 ATTENUATORS, ARRANGEMENTS OF ATTENUATORS, ACOUSTIC BARRIERS AND METHODS FOR CONSTRUCTING ACOUSTIC BARRIERS 有权
衰减器,衰减器的安排,声音障碍物和建立声音障碍物的方法

ATTENUATORS, ARRANGEMENTS OF ATTENUATORS, ACOUSTIC BARRIERS AND METHODS FOR CONSTRUCTING ACOUSTIC BARRIERS
摘要:
An attenuator for attenuating acoustic waves, the attenuator comprising: a first body defining a cavity therein and an elongate open aperture extending across a substantial portion of the first body, the first body being configured to attenuate acoustic waves over a resonant frequency band.
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