Noncontact nondestructive detection of inner metal defects based on laser-EMAT technique

ZHAO Yang; GUO Rui; SONG Jiang-feng; MA Jian; LIU Shuai; SUN Ji-hua; JIA Zhong-qing

doi:10.7510/jgjs.issn.1001-3806.2013.03.001

Theoretical analysis and experiments about laser-EMAT(electromagnetic-acoustic transducer) technique were carried out for the purpose of noncontact and nondestructive detection of inner defects of metal parts.The test slab contains a Ф3mm×30mm artificial hole about 40mm beneath the surface.The testing error was about 5%.The result shows that the laser-EMAT technique is suitable for noncontact and nondestructive detection of inner metal defects.

Noncontact nondestructive detection of inner metal defects based on laser-EMAT technique

1. Institute of Laser Research, Shandong Academy of Sciences, Ji'nan 250014, China;

2. Research Center of Nondestructive Testing Engineering of Shandong Province, Ji'nan 250014, China

Received Date: 2012-07-31

Accepted Date: 2012-08-31

Available Online: 2013-05-25

Abstract: Theoretical analysis and experiments about laser-EMAT(electromagnetic-acoustic transducer) technique were carried out for the purpose of noncontact and nondestructive detection of inner defects of metal parts.The test slab contains a Ф3mm×30mm artificial hole about 40mm beneath the surface.The testing error was about 5%.The result shows that the laser-EMAT technique is suitable for noncontact and nondestructive detection of inner metal defects.

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Reference (11)

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Noncontact nondestructive detection of inner metal defects based on laser-EMAT technique

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References

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