Quantitative evaluation of eddy current distribution by relative entropy and cross entropy

doi:10.1177/0020294020984201

CORC > 兰州理工大学 > 兰州理工大学 > 机电工程学院

	Quantitative evaluation of eddy current distribution by relative entropy and cross entropy
	Guolong Chen; Zheng Cao
刊名	Measurement and Control
	2021-12-05
卷号	2021 期号:Jan 页码:164-169
关键词	Electric current distribution measurement Entropy Probes Alternative current Eddy current distribution Eddy current probes Entropy indices Exciting frequency Quantitative evaluation Relative entropy Tangential intersections
ISSN号	00202940
DOI	10.1177/0020294020984201
英文摘要	Koch curve exciting coil of an eddy current probe can adjust the eddy current distributing in more directions at a small domain to enhance the sensitivity of eddy current probe for short defect detection. In this study, a relative entropy and a cross entropy of tangential intersection angle spectrum are proposed to evaluate the eddy current distributions in the different directions when the eddy current probe is positioned at different lift-off distances and excited by different exciting frequency alternative currents. The eddy current distributions induced by a circular and a fractal Koch curve exciting coils are analyzed by the two entropy indices. With the increasing of the lift-off distance or the decreasing of the exciting frequency, the eddy current distributions induced by the Koch curve exciting coil are close to those induced by the circular exciting coil. © The Author(s) 2021.
WOS研究方向	Automation & Control Systems ; Instruments & Instrumentation
语种	英语
出版者	SAGE Publications Ltd
WOS记录号	WOS:000652312600001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/146976]
专题	机电工程学院
通讯作者	Guolong Chen
推荐引用方式 GB/T 7714	Guolong Chen,Zheng Cao. Quantitative evaluation of eddy current distribution by relative entropy and cross entropy[J]. Measurement and Control,2021,2021(Jan):164-169.
APA	Guolong Chen,&Zheng Cao.(2021).Quantitative evaluation of eddy current distribution by relative entropy and cross entropy.Measurement and Control,2021(Jan),164-169.
MLA	Guolong Chen,et al."Quantitative evaluation of eddy current distribution by relative entropy and cross entropy".Measurement and Control 2021.Jan(2021):164-169.