Abstract：To achieve a high-precision and efficient way to measure the property parameters of sound absorbing material , an automatically measure system is developed with many devices such as PLC, stepping motor, which is based on standing wave theory. Many factors are described, for example, some wedges with a section of 0.6 m×0.6 m are tested and analyzed, including how to choose standing wave ratio. During the measurement, attenuation of sound wave and the mounting of wedge and microphone needn’t considered. As to the standing wave ratio, the first set value can meet requirements of engineering application measurement.
童宪,姚磊. 驻波比法吸声尖劈测试分析[J]. 计量学报, 2013, 34(3): 267-271.
TONG Xian,YAO Lei. The Test and Analysis of Sound Absorbing Wedge with Standing Wave Ratio Method. Acta Metrologica Sinica, 2013, 34(3): 267-271.
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2013, Vol. 34 
