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《Nondestructive Testing》 2011-02
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Evolution of the Acoustic Impact Testing Method

WU Guan-Hua1,LIN Jun-Ming2,REN Ji-Lin1,ZHOU Chang-Zhi2(1.Key Laboratory of NDT,Ministry of Education,Nanchang Hangkong University,Nanchang 330063,China;2.Beijing Echo Special Technology of NDT Co Ltd,Beijing 100191,China)  
The acoustic impact testing method is presented with two different excitation methods: the tap testing method and the acoustic impedance testing method.The tap testing method includes the whole vibration testing(wheel-tap test) method and the local vibration testing method(coin-tap test),and the acoustic impedance method has the mechanical impedance method and the local resonance testing method.Though the acoustic impact testing method has a long history in testing activities,most concerns of this method are only restricted in its experiential applications.Here,the principals and their developments of several branches of the acoustic impact testing method are covered,with the main purpose to improve this old but effective method with the help of the people who concern its development and applications.
【Fund】: 无损检测技术教育部重点实验室开放基金资助项目(ZD200929010)
【CateGory Index】: TG115.28
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