驻波管法

传递函数法与驻波管法的等效性

Equivalence between the Transfer Function Method and the SWM

驻波管法吸声系数与声阻抗率测量规范

Code for measurement of sound-absorbing coefficient and specific acoustic impedance of standing-wave meter

用驻波管法对新型吸声材料金属纤维的吸声特性进行了系统全面的研究。

Absorption characteristics of metal fibre are studied by using standing wave pipe method .

利用驻波管法研究了组合泡沫铝板在孔径不同、空气层厚度不同时的吸声系数变化规律。

The acoustic absorption regularity of the compound aluminum alleged foam planks is studied by means of standing wave tube .

在有限元分析基础上，采用了驻波管法对小样品玻璃进行隔声量测量。

After being analyzed with FEM , impedance tube method was introduced to measure sound transmission loss ( STL ) of glass .

通过混响室法测试了低噪声沥青路面的吸声系数，研究了低噪声沥青路面的噪声特征，并与驻波管法测试结果进行了比较。

Sound absorption coefficient of Low-noise asphalt pavement are tested by reverberation way in this paper , compared with standing wave instrument way .

本文在驻波管法实验研究的基础上，采用了有限元法对木质穿孔板的吸声性能进行模拟仿真。

Therefore , on the basis of standing wave tube method , this paper adopts finite element method to study the absorption performance of wooden perforated panel .

以高强石膏为主要原料，内掺玻璃纤维，在发泡剂的作用下，制备出一种新型多孔吸声材料，采用驻波管法测试材料的吸声系数。

A new type of sound absorbing material was made from super-strength gypsum and glass fiber and the sound absorp-tion coefficient of the material was tested by standing wave tube method .

在对这种材料的驻波管法声学测试的过程中，用有限元素法进行声学分析，得到与实验数据较为吻合的结果，实验结果和有限元分析结果都说明了此种复合材料具有良好的隔声性能。

The soundproof ability of the composite is evaluated by the finite element method , and the computed result has good coincidence with the experimental one . Both results proved that the composite has a better effect in sound insulation application .

针对微表处路面噪声大的问题，对当前级配进行调整，应用驻波管法测试其吸声系数，结果表明，混合料的吸声性能明显提高。

For a big noise problem of micro-surfacing pavement , the gradation has been changed , and then test their absorption coefficient with the standing wave tube , the results showed that sound absorption performance of the mixture has improved significantly .

目前，常用的测量方法（驻波管法和混响室法）属于实验室方法，其结果给出了待测样本在标准声学条件下的声学性能，为声学应用提供了重要的参考。

At present , some traditional lab methods , including the standing wave tube method and the reverberation room method , are commonly used . The result of these measurements gives the acoustic absorption performance of the specimen in standard acoustic conditions and provides an important reference for its application .

采用伪随机信号激励的驻波管三点测量法

Three-point method for measurement in a impedance tube using pseudorandom signal excitation