发明公开
EP1712883A2 Magnetostrictive transducer and apparatus for measuring an elastic wave using it
审中-公开
基本信息:
- 专利标题： Magnetostrictive transducer and apparatus for measuring an elastic wave using it
- 专利标题（中）：Magnetostriktiver Signalgeber undMessgerätfürelastische Wellen diesen benutzend
- 申请号：EP05253451.8 申请日：2005-06-04
- 公开(公告)号：EP1712883A2 公开(公告)日：2006-10-18
- 发明人： Kim, Yoon-young , Park, Chan-il , Cho, Seung-hyun , Kim, Woo-chul
- 申请人： Seoul National University Industry Foundation
- 申请人地址： San 4-2, Bongcheon-dong, Gwanak-gu Seoul KR
- 专利权人： Seoul National University Industry Foundation
- 当前专利权人： Seoul National University Industry Foundation
- 当前专利权人地址： San 4-2, Bongcheon-dong, Gwanak-gu Seoul KR
- 代理机构： Waddington, Richard
- 优先权： KR2004118017 20041231
- 主分类号： G01D5/48
- IPC分类号： G01D5/48
摘要：
Provided is a magnetostrictive transducer generating a torsional wave in a subject (2) having a predetermined section and measuring a torsional wave propagating in the subject (2). In the magnetostrictive transducer having a ferromagnetic patch (50) attached to a predetermined position of a subject (2), a cylindrical insulator (4) installed around the periphery of the ferromagnetic patch (50), and a coil (3) wound around the cylindrical surface of the insulator (4), a torsional wave is generated based on a magnetostrictive effect to then be induced to the subject (2) when current is applied to the coil (3). The ferromagnetic patch (50) includes a strip unit (51) attached to the subject (2) in an inclined manner with respect to an axial direction of the subject (2) and transferring the torsional wave to the subject (2); and tail units (52,53) formed at opposite ends of the strip unit (51) and concentrating a magnetic flux on the strip unit (51) when current is applied to the coil (3).
摘要（中）：
磁致伸缩换能器在具有预定部分的对象（2）中产生扭转波，并且测量在对象（2）中传播的扭转波。 在具有附着到被检体（2）的预定位置的铁磁贴片（50）的磁致伸缩换能器中，安装在铁磁贴片（50）周围的圆柱形绝缘体（4） 绝缘体（4）的圆柱形表面，当电流施加到线圈（3）时，基于磁致伸缩效应产生扭转波，然后被激发到对象（2）。 铁磁贴片（50）包括相对于被检体（2）的轴向倾斜地附接到被检体（2）的带状单元（51），并将扭转波转移到被检体（2）。 以及形成在带状单元（51）的相对端处的尾部单元（52,53），并且当电流施加到线圈（3）时，将磁通集中在带状单元（51）上。