公开(公告)号：US08368289B2

公开(公告)日：2013-02-05

申请号：US12993597

申请日：2009-04-10

申请人： Alexander Karabutov ,  Mikhail Lyamshev ,  Vladislav Mikhalevich ,  Manomohan Subudhl ,  Upendra Rohatgl

发明人： Alexander Karabutov ,  Mikhail Lyamshev ,  Vladislav Mikhalevich ,  Manomohan Subudhl ,  Upendra Rohatgl

IPC分类号： H01L41/08

CPC分类号： G01N29/2418 ,  G01L1/165 ,  G01L1/167 ,  G01N29/041 ,  G01N29/043 ,  G01N2291/0289 ,  G01N2291/0421 ,  G01N2291/0422 ,  G01N2291/0423

摘要： A laser opto-acoustic apparatus and method is applied for nondestructive testing of defects and residual stresses in solids. A nondestructive testing apparatus may have a piezoelectric transducer for measuring oscillations in a solid. The oscillations or waves may be caused from longitudinal, shear, and/or Raleigh waves in the object to be tested. The nondestructive testing apparatus may also include a laser. The laser is capable of generating the longitudinal, shear, and/or Raleigh waves in the object. One method of performing nondestructive testing of materials may include creating at least one of a longitudinal, shear, and/or Raleigh wave in an object and measuring the speed of the wave in the object. The speed of the waves may be compared with the speed of waves in a material without defects to determine whether the object to be tested has defects.

摘要翻译： 激光光声装置和方法用于固体中缺陷和残余应力的非破坏性测试。 非破坏性测试装置可以具有用于测量固体中的振荡的压电换能器。 振荡或波浪可能由被测物体中的纵向，剪切和/或罗利波引起。 无损检测装置也可以包括激光器。 激光能够在物体中产生纵向，剪切和/或罗利波。 执行材料的非破坏性测试的一种方法可以包括在物体中产生纵向，剪切和/或罗利波中的至少一个并测量物体中波的速度。 波的速度可以与没有缺陷的材料中的波的速度进行比较，以确定待测试对象是否具有缺陷。

公开(公告)号：US20110187233A1

公开(公告)日：2011-08-04

申请号：US12993597

申请日：2009-04-10

申请人： Alexander A. Karabutov ,  Michail Lyamshev ,  Georgiovich Mikhalevich ,  Manomohan Subuchi ,  Leonidovich Lyemshev ,  Vladislav Mikhalevich ,  Manomohan Subudhl ,  Leonidovich Lyamshev ,  Georgievich Mikhalevich ,  Manomohan Subudhi ,  Upendra Rohatgl

发明人： Alexander A. Karabutov ,  Michail Lyamshev ,  Georgiovich Mikhalevich ,  Manomohan Subuchi ,  Leonidovich Lyemshev ,  Vladislav Mikhalevich ,  Manomohan Subudhl ,  Leonidovich Lyamshev ,  Georgievich Mikhalevich ,  Manomohan Subudhi ,  Upendra Rohatgl

IPC分类号： H01L41/04

CPC分类号： G01N29/2418 ,  G01L1/165 ,  G01L1/167 ,  G01N29/041 ,  G01N29/043 ,  G01N2291/0289 ,  G01N2291/0421 ,  G01N2291/0422 ,  G01N2291/0423

摘要： A laser opto-acoustic apparatus and method is applied for nondestructive testing of defects and residual stresses in solids. A nondestructive testing apparatus may have a piezoelectric transducer for measuring oscillations in a solid. The oscillations or waves may be caused from longitudinal, shear, and/or Raleigh waves in the object to be tested. The nondestructive testing apparatus may also include a laser. The laser is capable of generating the longitudinal, shear, and/or Raleigh waves in the object. One method of performing nondestructive testing of materials may include creating at least one of a longitudinal, shear, and/or Raleigh wave in an object and measuring the speed of the wave in the object. The speed of the waves may be compared with the speed of waves in a material without defects to determine whether the object to be tested has defects.

摘要翻译： 激光光声装置和方法用于固体中缺陷和残余应力的非破坏性测试。 非破坏性测试装置可以具有用于测量固体中的振荡的压电换能器。 振荡或波浪可能由被测物体中的纵向，剪切和/或罗利波引起。 无损检测装置也可以包括激光器。 激光能够在物体中产生纵向，剪切和/或罗利波。 执行材料的非破坏性测试的一种方法可以包括在物体中产生纵向，剪切和/或罗利波中的至少一种并测量物体中波的速度。 波的速度可以与没有缺陷的材料中的波的速度进行比较，以确定待测试对象是否具有缺陷。