Sound Absorption Measurements of Transparent Micro-Perforated Membrane Absorbers

摘要：

In order to reveal the absorption properties of micro-perforated membrane absorbers and space absorbers, the broad-band absorption coefficients of eight wall absorbers and seven space absorbers with various perforation ratios and air cavities were measured and compared, thus investigating the correlations between the configurations and the sound absorption properties of the absorbers. The results indicate that both the micro-perforated membrane absorbers and the space absorbers have excellent absorption properties, and that the reliable first-band data not only can be immediately applied in practice but also are useful for the comparisons with theoretical calculations.

关键词： transparent micro-perforated membrane absorber sound absorption coefficient perforation ratio air cavity depth

作者: 张三明 欧阳金龙

作者单位: 浙江大学,建筑技术科学研究所,浙江,杭州,310058

会议类型: 国际会议

会议名称: The 3rd International Symposium on Temporal Design(第三届时间性设计国际研讨会)

会议地点: 广州

会议语种:英文

页码: 120-123

在线出版日期: 2007-11-02（万方平台首次上网日期，不代表论文的发表时间）