噪声与振动控制Issue(z1)：197-200,4.DOI:10.3969/j.issn.1006-1335.2013.S1.045
声压法测定噪声源声功率级的不确定度评定
Evaluation and Expression of Uncertainty in Measurement of Sound Power Levels of Noise Source Using Sound Pressure
武晨 1陆益民 1李志远1
作者信息
- 1. 合肥工业大学 噪声振动研究所，合肥 230009
- 折叠
摘要
Abstract
According to GB/T 3768-1996《Determination of sound power levels of noise source using sound pressure-Survey method using an enveloping measurement surface over a reflecting plane》and JJF1059-1999《Evaluation and Expression of Uncertainty in Measurement》, the reason what cause uncertainty in measurement of sound power levels of noise source using sound pressure is analyzed by combining with the practical condition. Then the type A and type B uncertainty are analyzed and calculated. Finally, the combined standard uncertainty and expanded uncertainty were calculated. this paper provides the reference for standardize the evaluation of uncertainty in measurement of sound power levels of noise source using sound pressure.关键词
声学/不确定度/声功率级/计算Key words
acoustics/uncertainty/sound power levels/calculation分类
通用工业技术引用本文复制引用
武晨,陆益民,李志远..声压法测定噪声源声功率级的不确定度评定[J].噪声与振动控制,2013,(z1):197-200,4.
