Analysis of measurement grid in quantitative assessment of micro damage

Hongjuan He; Dixiang Chen; Mengchun Pan; Ying Tang; Jianqiang Zhao

doi:10.1117/12.2014893

31 January 2013 Analysis of measurement grid in quantitative assessment of micro damage

Hongjuan He, Dixiang Chen, Mengchun Pan, Ying Tang, Jianqiang Zhao

Proceedings Volume 8759, Eighth International Symposium on Precision Engineering Measurement and Instrumentation; 87591M (2013) https://doi.org/10.1117/12.2014893
Event: International Symposium on Precision Engineering Measurement and Instrumentation 2012, 2012, Chengdu, China

Abstract

Micro damage on metal surface will cause the change of conductivity. By accurately measuring conductivity, quantitative assessment of micro damage can be achieved accurately. Planar electromagnetic sensor could be used to obtain conductivity through measurement database which relates sensor response to conductivity, the property of material under test. Measurement grid is graphical database, and its features have significant influences on measuring precision and speed. However, there are few studies on grid features of planar electromagnetic sensor. This paper analyses how the conductivity error is influenced by three features of grid unit, and presents the relationship between them, which could be used to optimize the database.

Citation Download Citation

Hongjuan He, Dixiang Chen, Mengchun Pan, Ying Tang, and Jianqiang Zhao "Analysis of measurement grid in quantitative assessment of micro damage", Proc. SPIE 8759, Eighth International Symposium on Precision Engineering Measurement and Instrumentation, 87591M (31 January 2013); https://doi.org/10.1117/12.2014893

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