激光超声技术用于研究楔形波及其模态的转变
摘要
Wedge waves (WWs) in wedges, including their dispersion characteristics and mode transformation, are investigated using the laser ultrasound technique. Pulsed laser excitation and optical deflection beam method for detection are used to record WWs. Numerous WWs are detected by scanning the excitation laser along the wedge tip. Dispersions of WWs are obtained by using the two-dimensional (2D) Fourier transformation method, and different WW orders are revealed on the wedges. Mode transformation is determined by fixing the distance between the excitation and detection position, as well as by scanning the samples along the normal direction of the wedge tip.
引用本文(GB/T 7714)
Jing Jia, Zhonghua Shen, Lijuan Wang, 等. 激光超声技术用于研究楔形波及其模态的转变[J]. Chinese Optics Letters, 2011.
引文网络
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