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	Improved immunity to lift-off effect in pulsed eddy current testing with two-stage differential probes
	Songling, H. ; Peng, Y. ; Shu, L. ; Wei, Z.
	2010-10-12 ; 2010-10-12
关键词	Experimental/ eddy current testing flaw detection multilayers/ lift-off effect pulsed eddy current testing two-stage differential probes nondestructive testing defect detection multiple layer surface objects irregular surface objects repeated pulses excitation lift-off height probe immunity/ A8170E Nondestructive testing: eddy current testing and related techniques
中文摘要	Pulse eddy current (PEC) testing is broadly used as an effective nondestructive testing technique especially for the defect detection of multiple layer and irregular surface objects. PEC testing's adoption of repeated pulses as excitation provides for the penetration of many frequency components into the piece being tested and returns more information from various depths. As the lift-off height will inevitably change during detection, the lift-off effect serves as a significant obstacle to implement effective nondestructive testing and further evaluations. This paper concentrates on improving the probe psila s immunity to the lift-off effect and proposes two-stage PEC differential probes. Physical experiments are addressed in this paper. Experimental results demonstrate that two-stage differential PEC probes are able to suppress lift-off effects.
语种	英语
出版者	Springer New York ; USA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/82297]
专题	清华大学
推荐引用方式 GB/T 7714	Songling, H.,Peng, Y.,Shu, L.,et al. Improved immunity to lift-off effect in pulsed eddy current testing with two-stage differential probes[J],2010, 2010.
APA	Songling, H.,Peng, Y.,Shu, L.,&Wei, Z..(2010).Improved immunity to lift-off effect in pulsed eddy current testing with two-stage differential probes..
MLA	Songling, H.,et al."Improved immunity to lift-off effect in pulsed eddy current testing with two-stage differential probes".(2010).

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