公开(公告)号：US20050225754A1

公开(公告)日：2005-10-13

申请号：US11086473

申请日：2005-03-22

申请人： Ifeanyi Ume ,  Lizheng Zhang

发明人： Ifeanyi Ume ,  Lizheng Zhang

IPC分类号： G01N21/88 ,  G01N21/956

CPC分类号： G01N21/95684 ,  G01N21/95607

摘要： Embodiments of inspection systems and methods are disclosed. One embodiment of an inspection system, among others, comprises logic configured to receive a reference signal and a target signal, the reference signal having first surface displacement information and the target signal having second surface displacement information, said logic configured to determine a correlation coefficient between the first surface displacement information and the second surface displacement information, the correlation coefficient indicating whether an inspected object exhibits a defect.

摘要翻译： 公开了检查系统和方法的实施例。 检查系统的一个实施例包括被配置为接收参考信号和目标信号的逻辑，参考信号具有第一表面位移信息，并且目标信号具有第二表面位移信息，所述逻辑被配置为确定 第一表面位移信息和第二表面位移信息，指示被检查物体是否表现出缺陷的相关系数。

公开(公告)号：US20080072674A1

公开(公告)日：2008-03-27

申请号：US11895217

申请日：2007-08-23

申请人： Ifeanyi Ume ,  Akio Kita

发明人： Ifeanyi Ume ,  Akio Kita

IPC分类号： G01N29/34

CPC分类号： G01N29/0618 ,  G01N29/2412 ,  G01N29/2418 ,  G01N2291/02854 ,  G01N2291/0422 ,  G01N2291/0423 ,  G01N2291/0426 ,  G01N2291/0428 ,  G01N2291/267

摘要： Disclosed are systems and methods that permit both real-time, and off-line, measurement of weld penetration depth. Exemplary systems and methods comprise an ultrasound source, such as a pulsed Nd:Yag laser, that simultaneously generates longitudinal and shear waves that radiate adjacent one side of a weld joining two specimens. An ultrasonic sensor, such as an electro-magnetic acoustic transducer or a piezo-electric transducer, capable of detecting shear and/or longitudinal waves, is disposed on an opposite side of the weld from the source. A signal processor is coupled to the sensor that processes time of flight signals for selected longitudinal or shear waves transmitted across the weld seam. The signal processor implements an algorithm that computes the weld penetration depth from the time of flight signals.

摘要翻译： 公开了允许焊接穿透深度的实时和离线测量的系统和方法。 示例性系统和方法包括超声源，例如脉冲Nd：Yag激光器，其同时产生辐射邻近连接两个样本的焊缝的一侧的纵波和剪切波。 诸如电磁换能器或压电换能器的能够检测剪切和/或纵波的超声波传感器设置在与源的焊接的相对侧上。 信号处理器耦合到传感器，其处理跨过焊缝传输的所选纵向或剪切波的飞行时间信号。 信号处理器实现了从飞行时间信号计算焊接穿透深度的算法。