计量学报2009，Vol.30Issue(6)：547-550,4.DOI:10.3969/j.issn.1000-1158.2009.06.15
等腰三角形路径扫描声强法测量声功率误差分析及参数优化
Analysis and Parameter Optimization of the Error in Sound Power Measurement by Scanning Isosceles Triangle Path with Sound Intensity Method
摘要
Abstract
To measure the measuring surfaces of isosceles triangle from tetrahedron which surround sound source by the method of isosceles triangle path scanning, the monopole source, dipole source and quadrupole source are taken as examples. The scanning sound intensity method can get the convergent feature of sound power. The convergent feature is studied. The error analysis of scanning sound intensity as objective function, the design variable which made up of the sizeof scanning measuring surfaces of isosceles triangle, the distance between measuring surface and sound source, and the density of scanning line, all of which optimized by GA. This optimization determines the geometry parameters of measuring surface, ensures the measuring accuracy, also improves the measuring efficiency . They lays a solid foundation for swiftly and accurately measuring sound power of sound source.关键词
计量学/扫描声强法/等腰三角形扫描路径/误差分析/优化Key words
Metrology/ Sound scanning method/ Isosceles triangle scanning path/ Error analysis/ Optimization分类
通用工业技术引用本文复制引用
周广林,周晃明..等腰三角形路径扫描声强法测量声功率误差分析及参数优化[J].计量学报,2009,30(6):547-550,4.基金项目
黑龙江省自然科学基金(ZTF2005-28) （ZTF2005-28）
黑龙江省骨干教师项目(1502G036) （1502G036）
