可再生能源2012,Vol.30Issue(6):40-43,4.
基于声压法的半混响声场反射声修正值计算及试验验证
Calculation and experimental verification of reflection sound corrected value in semi-reverberation sound field base on sound pressure method
摘要
Abstract
In this paper, a reflection sound correction formula in semi-reverberation sound field was reasoned out, and then it was tested and verified. First,a reflection sound correction formula was obtained through SPL formula. Furthermore, the reflection sound correction of measuring point was calculated according to this correction formula. Finally,a reflection sound experiment correction was gotten from the difference between one measured value, which was acquired in semi-anechoic chamber, and another measured value, which was acquired in wind tunnel laboratory at the same place. The comparison results show: reflection sound calculated correction and reflection sound experiment correction are well matched,and the correction formula is able to be applied to wind tunnel laboratory. It provides a theory basis for acoustic experiment to calculate reflection sound correction in wind tunnel laboratory.关键词
声压法/反射声修正公式/半消声室Key words
sound pressure/ reflection sound correction formula/ semi- anechoic room分类
能源科技引用本文复制引用
赵虹宇,代元军,汪建文,孙晓颖,吴伟民..基于声压法的半混响声场反射声修正值计算及试验验证[J].可再生能源,2012,30(6):40-43,4.基金项目
国家自然科学基金项目(50566001) (50566001)
教育部博士点专项科研基金项目(20091514110001). (20091514110001)