噪声与振动控制2018，Vol.38Issue(3)：190-192,209,4.DOI:10.3969/j.issn.1006-1355.2018.03.037
声管宽带脉冲二次透射法隔声测试技术
Sound Insulation Measurement Technique in Sound Tubes with Broadband Pulse Secondary Transmission Method
摘要
Abstract
Based on time-domain pulse-separation method in standing wave tubes, a method using broadband pulse secondary transmission wave is proposed for sound insulation measurement. Two kinds of broadband pulses are generated. By a proper design of the locations of the microphone and the sample, the incidence wave, reflection wave and the secondary transmission wave can be acquired easily with only one measurement and only one microphone. Then, the acoustic parameters of the sample can be calculated. An experiment is completed to verify the proposed method. Measurement result of this method is compared with that of the time-domain pulse-separation method, a good agreement between the two results is observed. This method is easy and simple and has good repetition. It can be used as an effective method for sound insulation measurement.关键词
声学/二次透射法/宽带脉冲/隔声测试Key words
acoustics/secondary transmission method/broadband pulse/sound insulation measurement分类
通用工业技术引用本文复制引用
刘哲,侯宏,卫政宇,张萌飞,柒志光..声管宽带脉冲二次透射法隔声测试技术[J].噪声与振动控制,2018,38(3):190-192,209,4.基金项目
西北工业大学研究生创意创新种子基金资助项目(Z2017084) （Z2017084）
