公开(公告)号：KR1020130038029A

公开(公告)日：2013-04-17

申请号：KR1020110102652

申请日：2011-10-07

Applicant: 서울대학교산학협력단

Inventor： 권영의 ,  전현중 ,  김회웅 ,  김윤영

IPC: G01N29/06 ,  G01F23/28

CPC classification number: B06B3/00 ,  B06B1/0644 ,  B06B1/08 ,  G01N29/2412 ,  G01N29/2462 ,  G01N2291/0422 ,  G10K11/355

Abstract: PURPOSE: A waveguide for a medium and a method for transmitting SH waves to an excitation device and a media are provided to block SH waves of modes higher than a secondary mode by using a waveguide and to transmit only SH waves of a primary mode. CONSTITUTION: A waveguide(20) comprises an excitation unit(21), a transmitting unit(23), and a connection unit(22). The excitation part is excited by an excitation unit and formed in a flat plate form. The transmitting unit transmits SH waves generated by the excitation unit to a medium of a bulk form and is formed into a flat plate form thicker than the excitation part. The connection unit is in contact with the excitation part and the transmitting unit respectively. The connection unit gets thicker from a portion contacting to the excitation part to a portion contacting to the transmitting portion.

Abstract translation: 目的：用于介质的波导和用于将SH波发送到激励装置和介质的方法被提供以通过使用波导来阻止高于次级模式的模式的SH波，并且仅发送主模式的SH波。 构成：波导（20）包括激励单元（21），发送单元（23）和连接单元（22）。 励磁部分由激励单元激励并形成为平板形式。 发送单元将由激励单元生成的SH波发送到散装形式的介质，并且形成为比激励部分更厚的平板形式。 连接单元分别与激励部分和发射单元接触。 连接单元从与激励部接触的部分变厚到与透射部接触的部分。

公开(公告)号：KR101450076B1

公开(公告)日：2014-10-15

申请号：KR1020130060786

申请日：2013-05-29

Applicant: 서울대학교산학협력단

Inventor： 김윤영 ,  승홍민 ,  김회웅

IPC: G01N29/04

CPC classification number: H01L41/12 ,  B06B1/08 ,  Y10T29/49071

Abstract: 본발명에따른트랜스듀서는, 정자기장을발생시키는영구자석; 상기영구자석하부에배치되며자기장변화에따라서변형되는재질로구성된패치; 상기패치의상면에배치되는절연체; 및상기패치및 절연체에소정의형태로권선되며전류의인가에따라서상기패치에동자기장이유도되도록하는코일; 을포함하며, 상기코일의권선형태는, 상기영구자석이발생하는정자기장과상기코일이권선되어발생시킨동자기장의방향이서로직교하도록하는형태를갖는다.

Abstract translation: 根据本发明，换能器包括产生静磁场的永磁体; 所述补片设置在所述永磁体的下侧，并且形成有根据磁场变化而变形的材料; 设置在所述贴片的上侧的绝缘体; 以及以预定形状缠绕在贴片和绝缘体上的线圈，并根据所施加的电流将贴片上的移动磁场引导到该贴片上，其中线圈缠绕成使得由该线圈产生的静磁场的方向 永磁体和由缠绕线圈彼此正交的动态磁场的方向。

公开(公告)号：KR101262935B1

公开(公告)日：2013-05-09

申请号：KR1020110102652

申请日：2011-10-07

Applicant: 서울대학교산학협력단

Inventor： 권영의 ,  전현중 ,  김회웅 ,  김윤영

IPC: G01N29/06 ,  G01F23/28

CPC classification number: B06B3/00 ,  B06B1/0644 ,  B06B1/08 ,  G01N29/2412 ,  G01N29/2462 ,  G01N2291/0422 ,  G10K11/355

Abstract: 본발명의목적은벌크형태의매질에대해원하는패턴으로 SH 웨이브를전달할수 있는가진장치와이 장치를이용한 SH 웨이브의전달방법을제공하는것이다. 또한, 이과정에서벌크형태의매질에원하는패턴의 SH 웨이브를전달할수 있도록돕는웨이브가이드를제공하는것이다. 이를위하여본 발명에서는, 가진유닛에의해가진되는것으로평판형태로만들어진가진부; 벌크형태의매질에상기가진유닛에서발생된 SH 웨이브를전달하는것으로상기가진부에비해두께가두꺼운평판형태로만들어진전달부; 및상기가진부와상기전달부에각각접하는것으로상기가진부에접하는부분으로부터상기전달부에접하는부분으로갈수록두께가변화하는연결부를구비하는웨이브가이드를제공하고, 이웨이브가이드를사용하는가진장치와이 가진장치를사용하는 SH 웨이브전달방법을제공한다.

公开(公告)号：KR101073686B1

公开(公告)日：2011-10-14

申请号：KR1020090030498

申请日：2009-04-08

Applicant: 서울대학교산학협력단

Inventor： 김회웅 ,  권영의 ,  김윤영

IPC: G01B7/16 ,  G01N27/82

CPC classification number: H01F7/0273 ,  B06B1/085 ,  G01N27/82

Abstract: 본발명의목적은봉 및배관과같은구조물에서고주파의전단파를발생시킬수 있는분절형자기변형패치배열트랜스듀서, 이를구비한구조진단장치및 이트랜스듀서의작동방법을제공하는것이다. 이를위하여본 발명에서는, 봉부재의둘레에부착되는복수개의자기변형패치; 각각의자기변형패치상에배치되는절연체; 각각의절연체상에서상기봉 부재의둘레방향으로연장된복수의코일라인들을구비하고, 서로인접한코일라인에는서로반대방향으로전류가흐르도록형성된미엔더코일; 및각각의자기변형패치에상기봉 부재의둘레방향으로자기장을형성하는자석을포함하는분절형자기변형패치배열트랜스듀서, 이를구비한구조진단장치및 이트랜스듀서의작동방법을제공한다.

公开(公告)号：KR1020100111986A

公开(公告)日：2010-10-18

申请号：KR1020090030498

申请日：2009-04-08

Applicant: 서울대학교산학협력단

Inventor： 김회웅 ,  권영의 ,  김윤영

IPC: G01B7/16 ,  G01N27/82

CPC classification number: H01F7/0273 ,  B06B1/085 ,  G01N27/82

Abstract: PURPOSE: A segmented magnetostrictive patch array transducer, a structure diagnosis device having the transducer and a method for operating the transducer are provided to inspect more precise fault in a structure such as a rod or pipeline by generating strong shear wave. CONSTITUTION: A segmented magnetostrictive patch array transducer(200) comprises magnetostrictive patches(201), insulators(203), meander coils(204) and magnets(206). The magnetostrictive patches are attached to the circumference of a rod member(202). The insulators are arranged on the respective magnetostrictive patches. Each of the meander coils has multiple coil lines which are extended in the circumferential direction of the rod member on each insulator, wherein electric currents of opposite flow directions flow in the adjacent coil lines. The magnets form a magnetic field of the rod circumference direction on each magnetostrictive patch. When electric current is applied to one or more of the meander coils, the magnetostrictive patches positioned in the selected meander coils are deformed to generate shear wave in the rod member.

Abstract translation: 目的：提供分段磁致伸缩贴片阵列换能器，具有换能器的结构诊断装置和用于操作换能器的方法，以通过产生强剪切波来检查诸如杆或管道的结构中的更精确的故障。 构造：分段磁致伸缩贴片阵列换能器（200）包括磁致伸缩贴片（201），绝缘体（203），曲折线圈（204）和磁体（206）。 磁致伸缩贴片附接到杆构件（202）的圆周上。 绝缘体布置在各自的磁致伸缩贴片上。 每个曲折线圈具有多个线圈，其在每个绝缘体上在杆构件的圆周方向上延伸，其中相反流动方向的电流在相邻的线圈线中流动。 磁体在每个磁致伸缩补片上形成棒周向的磁场。 当电流施加到一个或多个曲折线圈时，位于所选择的曲折线圈中的磁致伸缩片被变形以在杆构件中产生剪切波。