Calibration Technology of Three-Dimension Sound Intensity Method

被引：0
|
作者：
Wang H. [1 ]
Yang Y. [1 ]
Zhang L. [2 ]
机构：
[1] Department of Architecture, South China University of Technology, Guangzhou, 510640, Guangdong
[2] Special Equipment Studio, CITIC General Institute of Architectural Design and Research Co., Ltd., Wuhan, 430014, Hubei
来源：
| 2018年 / South China University of Technology卷 / 46期
基金：
中国国家自然科学基金;
关键词：
Acoustic measurement; Amplitude error; Directional errors; Three-dimension sound intensity calibration; Transfer function method;
D O I：
10.3969/j.issn.1000-565X.2018.07.017
中图分类号：
学科分类号：
摘要：
The development of Three-dimension sound intensity technology is of significance to the field of acoustic measurement. The three-dimension sound intensity calibration technology is to ensure the accuracy of three-dimension sound intensity measurement. This paper is mainly about the transfer function method to calibrate the three-dimension sound intensity measurement system, and to measure the amplitude error and directional error of the system in the whole anechoic chamber. Under the premise of ensuring accuracy, the measurement environment can be approximated as a planar sound field to simplify the calculation. It can be known from the actual measurement results that the adoption of the three-dimension sound intensity calibration system described in the text can ensure that the sound intensity probe has a high measurement accuracy. when f=1000Hz, the difference between the amplitude error simulation and the value measured is less than 1.2dB, and the difference between the directional error simulation and the value measured is less than 10°. Three-dimension sound intensity calibration system is to ensure that the sound intensity probe with a high accuracy. © 2018, Editorial Department, Journal of South China University of Technology. All right reserved.
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页码：123 / 127and136
相关论文
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