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High-speed imaging of defects in thin plate by scanning elastic wave source technique using an airborne ultrasound phased array

机译:薄板缺陷通过扫描弹性波源技术使用空气超声波相控阵的高速成像

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摘要

We proposed high-speed visualization of defects by guided waves using an airborne ultrasound phased array (AUPA). The AUPA can move the focal point of the acoustic wave at high-speed by electronic control. By applying this sound source to the elastic wave source scanning technique, the measurement time can be significantly reduced. This report demonstrated the proposed method to visualize thin metal plate defects. The results confirmed that the defect can be visualized by the amplitude peak distribution of the propagating guided waves. In addition, it was confirmed that applying background subtraction processing to the imaging results allows the defects to be more clearly visualized. (C) 2020 The Japan Society of Applied Physics
机译:我们通过使用空降超声相控阵(AUPA)提出了引导波的引导波的高速可视化。 AUPA可以通过电子控制以高速移动声波的焦点。通过将该声源应用于弹性波源扫描技术,可以显着降低测量时间。本报告证明了所提出的方法可视化薄金属板缺陷。结果证实,通过传播引导波的幅度峰值分布可以可视化缺陷。另外,证实将背景减法处理应用于成像结果允许更清晰可视化的缺陷。 (c)2020日本应用物理学会

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  • 来源
    《Japanese journal of applied physics》 |2020年第sk期|SKKD15.1-SKKD15.12|共12页
  • 作者单位

    Nihon Univ Coll Sci & Technol Chiyoda Ku Tokyo 1018308 Japan;

    Nihon Univ Coll Sci & Technol Chiyoda Ku Tokyo 1018308 Japan;

    Nihon Univ Coll Sci & Technol Chiyoda Ku Tokyo 1018308 Japan;

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