An Experimental Method to Determine the Cut-Off Frequency of an Acoustical Free Field in a Non-Ideal Environment
作者: Mohammad Al Zubi
刊名: Open Journal of Acoustics, 2018, Vol.08 (01), pp.1-11
来源数据库: Scientific Research Publishing Journal
DOI: 10.4236/oja.2018.81001
原始语种摘要: The availability of ideal conditions like anechoic chamber to characterize some sound parameters, like sound intensity and sound power necessities the determination of free field and cut off frequency measurements. In this article, full experiment was executed at Wayne State University (Detroit-Michigan), to determine the cut off frequency in all directions; the obtained results showed that the free field can be determined for a specified space. So other tests can take place in this space avoiding regions where reflections and consequently noise can be found. Upon these results tests related to noise abatement in vehicles can be done in such environment.
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关键词翻译
关键词翻译
  • Ideal 铜镍合金
  • specified 给定的
  • ideal 理想
  • abatement 轻减
  • determination 测定
  • noise 噪声
  • characterize 成为...的特性
  • sound 海峡
  • determine 决心
  • consequently 因此