Location Technique of Acoustic Emission for Sperical Presure Vessels

摘要

Triangular source location technique of acoustic emission for spherical pressure vessel is studied in this paper. The differences of planar and spherical source location are discussed. In order to find the source correctly, a new source model--heavy source and multi-source--is developed. Based on thi model, a new location judgment method--double-grouped method is put forward. The lcoation result of this method is given. A numerical method of Newton iterative is used for location computing. The calculating resutl shows that this method is very good.