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Research on Effect of Sonic Speed on Acoustic Emission Source Locating Precision
Zhizhen Zhang * #,Feng Gao,Xingguang Liu,Li Zhu
School of Sciences,China University of Mining and Technology
*Correspondence author
#Submitted by
Subject:
Funding: none
Opened online:21 January 2009
Accepted by: none
Citation: Zhizhen Zhang,Feng Gao,Xingguang Liu.Research on Effect of Sonic Speed on Acoustic Emission Source Locating Precision[OL]. [21 January 2009] http://en.paper.edu.cn/en_releasepaper/content/28131
 
 
Sonic speed affects locating result enormously in Acoustic emission (AE) detection. To test the effect of sonic speed on locating precision, using PCI-2 systerm produced by PAC corp. in US, 3 group of experimentations are done on steel tube whose outer-dia. is 35mm; contrasted conclusion between detecting points and ture place is obtained, it can be used in validation of test. Variety of sonic speed as space between sensors changes is analyzed, and a new model which considering the variety is brought forward, then the error of conventional locating arithmetic on time difference is gained.
Keywords:AE; location;sonic speed;precision;effect
 
 
 

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