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Reverberation chamber and its verification for acoustic measurements

机译:混响室及其对声学测量的验证

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摘要

Reverberation rooms are useful for measurement of the acoustic quantities of machines that operate in long cycles, however, current reverberation chamber design practices often lead to known issues with reproducibility and repeatability of measured data. The problem is that construction process of these laboratories is performed according to the relevant standards requirements which are mainly focused on the volume of the room or on the absorption coefficient value of the boundary surfaces. Nevertheless, the inner-laboratory reproducibility of acoustic data is very difficult to achieve even when these diffusivity quantifiers are satisfied. This paper presents a verification process of an acoustic laboratory which proportions, shape and construction material of boundary surfaces are not in compliance with standards in every detail.
机译:混响室对于长时间运行的机器的声学量的测量很有用,但是,当前的混响室设计实践通常会导致已知问题,即测量数据的可重复性和可重复性。问题在于这些实验室的建造过程是根据相关标准要求进行的,这些要求主要集中在房间的体积或边界表面的吸收系数值上。然而,即使满足这些扩散量词,也很难实现声学数据的内部实验室可再现性。本文介绍了一个声学实验室的验证过程,该过程的边界表面的比例,形状和构造材料在每个细节上均不符合标准。

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