发明名称 |
NONDESTRUCTIVE TESTING APPARATUS AND METHOD |
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. |
申请公布号 |
EP2316018(A1) |
申请公布日期 |
2011.05.04 |
申请号 |
EP20090729949 |
申请日期 |
2009.04.10 |
申请人 |
BROOKHAVEN SCIENCE ASSOCIATES LLC. |
发明人 |
ROHATGI, UPENDRA, S.;SUBUDHI, MANOMOHAN;LYAMSHEV, LEONIDOVICH, M.;MIKHALEVICH, GEORGIEVICH, V.;KARABUTOV, ALEXANDER, A. |
分类号 |
G01N29/04;G01L1/16;G01N29/07;G01N29/24 |
主分类号 |
G01N29/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|