Paper Title:
The Study of Method for Calculating Geometric Average Sound Intensity in Scattering Field
  Abstract

When calculating sound intensity by indirectly measuring way, the sound pressures obtained from two microphones should be mathematically averaged as the sound pressure of measured point. The research showed that the method exists lower of allowable value in the high frequency area. Using the geometric average value of two measured points to replace the sound pressure of measured point, studying the measurement of sound intensity in scattering field, the errors from which were compared. The result showed that the error of geometric average sound intensity was more flat than that of mathematic average. So the sound intensity obtained from geometric average sound pressure is more suitable for the measurement of a wider frequency range. And the computing time is short, which can raise the measurement efficiency and the real-time of measurement.

  Info
Periodical
Edited by
Hun Guo, Zuo Dunwen, Hongli Xu, Chun Su, Chunjie Liu and Weidong Jin
Pages
185-191
DOI
10.4028/www.scientific.net/KEM.458.185
Citation
F. L. Luo, G. Y. Li, "The Study of Method for Calculating Geometric Average Sound Intensity in Scattering Field", Key Engineering Materials, Vol. 458, pp. 185-191, 2011
Online since
December 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Wei Qiang Gao, Bo Xie, Zou Ya Huang, Chao Ting Qing
Abstract:This paper taken the flat-end tool and machined surface as a pair of mutually conjugate space contact tooth envelope surface and used the...
41
Authors: Guo Fu Ding, Lei Jiang, Shao Wei Zhu, Shu Wen Ma
I. Advanced Manufacturing Technology and Equipment
Abstract:Geometric errors identification of revolving axle of multi-axis machine tool has encountered a great difficulty in geometric errors...
262
Authors: Ji Yang Ma, Fang Yu Peng, Rong Yan, Jing Wu
Chapter 2: Modeling, Analysis and Simulation of Manufacturing Processes
Abstract:To evaluate the profile error of manufacture mainly caused by geometric error of machine tool, this paper proposes a geometric error...
556
Authors: Shuan Qiang Yang, Shu Wen Lin
Chapter 6: Advanced NC Techniques and Equipment
Abstract:A method for fast measuring and identify the six geometric errors of each rotary axes in Four- axis machining center was invented. The method...
348
Authors: Zhen Yu Han, Hong Yu Jin, Yu Long Liu, Hong Ya Fu
Chapter 3: Techniques for Measurement, Detection and Monitoring
Abstract:Error compensation can improve the accuracy of machine tools effectively. Among the error sources affecting the accuracy of CNC machine tool,...
627