吸声指数,sound absorption index
1)sound absorption index吸声指数
2)sound absorption coefficient吸声系数
1.A model ofsound absorption coefficient based on damped harmonic oscillator and its application基于阻尼谐振子的吸声系数模型及其应用
2.Thesound absorption coefficient of the material was tested by standing wave tube method.采用驻波管法测试材料的吸声系数。
3.The effect of thickness and density of the melamine foam on thesound absorption coefficient was analyzed by impedance experiment.结果表明:材料厚度对其吸声性能的影响较大,密度对吸声性能只在频率400 Hz以下略有影响;三聚氰胺泡沫塑料较纤维材料低频(<1 kHz)吸声系数低,中高频(≥1 kHz)系数高;与聚氨酯泡沫塑料相比,低频(<1 kHz)吸声性能相当,中高频(≥1 kHz)吸声性能较佳。
英文短句/例句
1.average sound absorption coefficient平均吸声系数,平均吸声率
2.Code for measurement of sound-absorbing coefficient in reverberation room混响室法吸声系数测量规范
3.The sound absorption coefficient of the material was tested by standing wave tube method.采用驻波管法测试材料的吸声系数。
4.Analysis on the Error of Calculating the Sound Absorption Coefficient Using the Reverberation Chamber Method混响室法测定吸声系数计算误差分析
5.Code for measurement of sound-absorbing coefficient and specific acoustic impedance of standing-wave meter驻波管法吸声系数与声阻抗率测量规范
6.Use of Corner Microphone for Sound Absorption Measurement in a Reverberation Chamber混响室中用角点传声器测量材料的吸声系数
7.A new method to measure the absorption coefficient based on sound pressure shifting基于声压移相的测量吸声系数的一种新方法
8.A measurement of the absorption coefficient based on cepstrum analysis基于倒频谱分析的吸声系数测量的一种新方法
9.A model of sound absorption coefficient based on damped harmonic oscillator and its application基于阻尼谐振子的吸声系数模型及其应用
10.Influence of Specimen Area on Its Absorption Coefficient in Reverberation Room混响室中不同试件面积对吸声系数的影响研究
11.Research on Measurement of Sound Absorbtion Coefficient Based on Inverse Filter Principle基于逆滤波器原理的吸声系数测量研究
12.When the backing is a double-shell, the water layer causes obvious modulation phenomenon to the absorption coefficient curve.背衬为双层壳体时，水层对吸声覆盖层的吸声系数曲线有明显的调制现象。
13.It is concluded from the study that the absorption coefficient depends upon the air voids of asphalt mixture.发现空隙率尤其是有效空隙率是影响沥青混合料吸声系数的关键因素;
14.statistical sound power absorption coefficient统计声功率吸收系数
15.acoustical transmission coefficient声透射系数，透声系数
16.Theoretical Analysis of the Influence of Measurement Parameters on the Measurement Accuracy of Optical Absorption Coefficient with Pulsed Photoacoustic Method检测参数对脉冲光声法测量绝对吸收系数准确性的影响
17.Discussion on System of Polyurethane Underwater Anechoic Material and Research Progress in Polyurethane Anechoic Structure聚氨酯水声吸声材料的体系探讨及其吸声结构的研究进展
18.The Relationship between Molar Absorption Coefficient & Apparent Molar Absorption Coefficient;摩尔吸光系数与表观摩尔吸光系数的关系
相关短句/例句
sound absorption coefficient吸声系数
1.A model ofsound absorption coefficient based on damped harmonic oscillator and its application基于阻尼谐振子的吸声系数模型及其应用
2.Thesound absorption coefficient of the material was tested by standing wave tube method.采用驻波管法测试材料的吸声系数。
3.The effect of thickness and density of the melamine foam on thesound absorption coefficient was analyzed by impedance experiment.结果表明:材料厚度对其吸声性能的影响较大,密度对吸声性能只在频率400 Hz以下略有影响;三聚氰胺泡沫塑料较纤维材料低频(<1 kHz)吸声系数低,中高频(≥1 kHz)系数高;与聚氨酯泡沫塑料相比,低频(<1 kHz)吸声性能相当,中高频(≥1 kHz)吸声性能较佳。
3)absorption coefficient吸声系数
1.The method to surveying the material sound-absorption coefficient in a scale reverberation chamber;缩尺混响室中测量材料吸声系数的方法
2.Calculation ofabsorption coefficient of the multiple-layer absorbers;多层吸声材料吸声系数的理论计算
3.Influence of depth and cavity shape onabsorption coefficients of sound-isolating decoupled tiles;水深与腔型对隔声去耦瓦吸声系数的影响
4)sound absorbing coefficient吸声系数
5)Sound absorption吸声系数
1.The sound absorption property of the samples were studied.实验显示,当吸声板密度为382kg/m3、厚度为50mm时,平均吸声系数最大为0。
6)sound-absorption coefficient吸声系数
1.A miniature acoustic pulse tube introduced in this paper may determinesound-absorption coefficient, sound-reflection coefficient and sound-trasmission coefficient of rubber goods and sample in laboratory.本文介绍的一种小型声脉冲管装置可以在试验室对橡胶制品和试样的吸声系数，反声系数和透声系数进行测定。
2.The results show that thesound-absorption coefficient increases with material thickness and this relationship is more distinct for low-mid frequencies than for high frequencies.结果表明,吸声系数随着厚度增加而增加,且对中低频声波吸声系数的提高比对高频声波显著。
延伸阅读
吸声分子式：CAS号：性质：声波通过某种介质或射到某介质表面时，声能减少或转换为其他能量的过程称为吸声。表征材料吸声性能的参数是吸声系数(acoustical absorption coefficient)，即被材料吸收的声能与入射声能的比值。吸声系数大于0.2的材料称为吸声材料(acoustical absorption materials)。常用的吸声材料有玻璃棉、矿渣棉、卡普隆纤维、棉麻等植物纤维、泡沫微孔吸声砖等。
