Information Entropy of Angular Spectrum for Quantitatively Evaluating Eddy Current Distribution Varying in Time Domain

doi:10.1007/s12204-022-2475-9

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	Information Entropy of Angular Spectrum for Quantitatively Evaluating Eddy Current Distribution Varying in Time Domain
	Chen, Guolong; Wang, Kang; Cao, Zheng; Jin, Wuyin
刊名	Journal of Shanghai Jiaotong University (Science)
	2022
关键词	Angular distribution Eddy current testing Time domain analysis A Angular spectrum Eddy current distribution Eddy current probes Eddy current sensors Eddy-current testing Information entropy Non destructive testing Rotational field eddy current probe TH 878
ISSN号	1007-1172
DOI	10.1007/s12204-022-2475-9
英文摘要	Eddy current (EC) distribution induced by EC sensors determines the interaction between the defect in the testing specimen and the EC, so quantitatively evaluating EC distribution is crucial to the design of EC sensors. In this study, two indices based on the information entropy are proposed to evaluate the EC energy allocated in different directions. The EC vectors induced by a rotational field EC sensor varying in the time domain are evaluated by the proposed methods. Then, the evaluating results are analyzed by the principle of EC testing. It can be concluded that the two indices can effectively quantitatively evaluate the EC distributions varying in the time domain and are used to optimize the parameters of the rotational EC sensors. © 2022, Shanghai Jiao Tong University.
语种	英语
出版者	Shanghai Jiaotong University
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/159380]
专题	机电工程学院电气工程与信息工程学院
作者单位	School of Mechanical and Electrical Engineering, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Chen, Guolong,Wang, Kang,Cao, Zheng,et al. Information Entropy of Angular Spectrum for Quantitatively Evaluating Eddy Current Distribution Varying in Time Domain[J]. Journal of Shanghai Jiaotong University (Science),2022.
APA	Chen, Guolong,Wang, Kang,Cao, Zheng,&Jin, Wuyin.(2022).Information Entropy of Angular Spectrum for Quantitatively Evaluating Eddy Current Distribution Varying in Time Domain.Journal of Shanghai Jiaotong University (Science).
MLA	Chen, Guolong,et al."Information Entropy of Angular Spectrum for Quantitatively Evaluating Eddy Current Distribution Varying in Time Domain".Journal of Shanghai Jiaotong University (Science) (2022).