物理学报2012，Vol.61Issue(2)：269-274,6.
太赫兹激励的红外热波检测技术
Terahertz thermal wave nondestructive test
摘要
Abstract
This work aims at developing a new excitation method for thermal wave nondestructive test（NDT）-Terahertz excitation.In the paper we introduce a theoretical model of heat conduction for periodical THz excitation.BWO（backward wave oscillator） terahertz source is employed to heat a carbon fiber plate with wave absorbing coating,surface temperature variations and distributions are captured by an infrared camera,and Canny edge algorithm is used to process thermal images to show the defects.Result of flash pulse thermography serves as comparison,and the advantages of THz thermal wave NDT are discussed.The combination of THz technology and infrared thermal wave NDT is realized.关键词
红外热成像/太赫兹激励/返波振荡器/无损检测Key words
thermal wave imaging/THz excitation/backward wave oscillator（BWO）/nondestructive testing分类
信息技术与安全科学引用本文复制引用
陈大鹏,邢春飞,张峥,张存林..太赫兹激励的红外热波检测技术[J].物理学报,2012,61(2):269-274,6.基金项目
国家自然科学基金民航联合基金（批准号：61079020）资助的课题~~ （）
