Error propagation analysis of four sound‐power measurement techniques
作者:
G. A. Russell,
期刊:
The Journal of the Acoustical Society of America
(AIP Available online 1980)
卷期:
Volume 67,
issue 2
页码: 663-665
ISSN:0001-4966
年代: 1980
DOI:10.1121/1.383891
出版商: Acoustical Society of America
数据来源: AIP
摘要:
Error propagation equations are derived for four different sound‐power measurement techniques: hemispherical freefield, reference source, reverberation time, and two surface. The analysis shows the hemispherical freefield and two‐surface methods to be governed by the same error equation. Of the four methods examined, the reference‐source method is shown to exhibit the strongest dependence on errors in measuring the space averaged sound pressure. The results obtained can be used in planning and executing more accurate sound‐power measurements.
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