Eddy current step heating thermography for quantitatively evaluation

被引：27

作者：

He, Yunze ^{[1
,2
]}

Pan, Mengchun ^{[1
]}

Chen, Dixiang ^{[1
]}

Tian, GuiYun ^{[2
,3
]}

Zhang, Hong ^{[2
]}

机构：

[1] Natl Univ Def Technol, Coll Mechatron Engn & Automat, Changsha 410073, Hunan, Peoples R China

[2] Newcastle Univ, Sch Elect & Elect Engn, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England

[3] Univ Elect Sci & Technol China, Sch Automat Engn, Chengdu 610054, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2013年 / 103卷 / 19期

基金：

英国工程与自然科学研究理事会;

关键词：

NONDESTRUCTIVE INSPECTION;

D O I：

10.1063/1.4828889

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

This Letter proposed eddy current step heating thermography (ECSHT) combing eddy current excitation with SHT. It has been verified through numerical and experimental studies that the temperature-time(1/2) curve can be used to detect the subsurface defects. Separation time was defined and extracted from temperature responses as characteristic feature. Experiment studies with mild steel sample were conducted, and the experimental results showed that two features representing separation time can be used to measure the defect's depth based on their linear relationships. (C) 2013 AIP Publishing LLC.

引用

页数：4

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