发明名称 |
Segmented magnetostrictive patch array transducer, apparatus for diagnosing structural fault by using the same, and method of operating the same |
摘要 |
A segmented magnetostrictive patch array transducer capable of generating a high frequency shear wave in a structure such as a rod or a pipe, a structural fault diagnosing apparatus including the segmented magnetostrictive patch array transducer, and a method of operating the segmented magnetostrictive patch array transducer are shown. The segmented magnetostrictive patch array transducer includes a plurality of magnetostrictive patches attached along a circumference of a rod member; a plurality of insulators that are disposed on the magnetostrictive patches; a plurality of meander coils, each of the meander coils comprising a plurality of coil lines extending along the circumference direction of the rod member on each of the insulators, wherein a current flows through adjacent coil lines in opposite directions to one another; and a plurality of magnets that respectively form a magnetic field along the circumferential direction of the rod member on the magnetostrictive patches.
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申请公布号 |
US8354842(B2) |
申请公布日期 |
2013.01.15 |
申请号 |
US20090640602 |
申请日期 |
2009.12.17 |
申请人 |
SNU R&DB FOUNDATION;KIM HOE WOONG;KWON YOUNG EUI;KIM YOON YOUNG |
发明人 |
KIM HOE WOONG;KWON YOUNG EUI;KIM YOON YOUNG |
分类号 |
G01N27/82 |
主分类号 |
G01N27/82 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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