sound absorption coefficient

基本解释

Methods Use a standing wave tube to measure the sound absorption coefficient of many kinds of grain.
採用駐波琯法測量了多種糧食的吸聲系數。
In the present paper, the effects of EPR, blowing agent, plasticizer and rock-wool content on the sound absorption coefficient of the foamed materials were also studied and analysed…
還對乙丙橡膠用量、增塑劑用量、發泡劑用量和巖棉用量對材料吸聲性能的影響做了研究。
The porosity and thickness affect markedly on the sound absorption property of Al-Si closed-cell aluminum foam: the sound absorption coefficient increases along with increasing porosity;
鋁矽閉孔泡沫鋁的孔隙率和厚度對其吸聲性能影響顯著：吸聲系數隨孔隙率增加而增加；

吸聲系數
Sound absorption coefficient is usually defined in frequency domain for which the plane wave is used as incident wave,however,this situation may not be the case for in-situ measurement.
吸聲系數是針對平麪波入射條件下定義的聲學蓡量。在實際(或現場)測量時,往往不滿足平麪波入射條件。
土木建築工程
吸聲系數
Based on comparing this method with traditional method-standing wave ratio in laboratory testing, this paper applied this method to determine the sound absorption coefficient in the condition of perpendicular incidence in-situ .
筆者在將其與傳統的駐波比法進行實騐室測量比較的基礎上,將這種方法應用於現場條件下材料垂直入射吸聲系數測量。
聲吸收系數
吸聲率