Evaluation of measurement value and uncertainty of sound pressure level difference obtained by active device noise reduction
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- 作者：Jó ; zef Wiora ; jozef@wiora.pl ; Stanisław Wrona stanislaw.wrona@polsl.pl ; Marek Pawelczyk marek.pawelczyk@polsl.pl
- 关键词：Active noise control ; Active casing ; Measurement result evaluation ; Spatial variability ; Type A uncertainty decomposition
- 刊名：Measurement
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：96
- 期：Complete
- 页码：67-75
- 全文大小：593 K
- 卷排序：96
文摘
Acoustic insulation of a device is enhanced by controlling vibration of its casing. Measurement uncertainty evaluation of sound pressure level difference is presented. Three independent components of the Type A evaluated uncertainties are derived. The prepared budgets shows that the most contributing source is location dependency. Recommendations for performance measurement of an active control system are stated.