The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 06, 2012
Filed:
Jun. 16, 2010
Magnetostrictive transducer and apparatus and method for monitoring structural health using the same
Ju Seung Lee, Pohang-si, KR;
Min Kyung Lee, Seoul, KR;
Heung Son Lee, Hwaseong-si, KR;
Yoon Young Kim, Seoul, KR;
Ju Seung Lee, Pohang-si, KR;
Min Kyung Lee, Seoul, KR;
Heung Son Lee, Hwaseong-si, KR;
Yoon Young Kim, Seoul, KR;
SNU R&DB Foundation, Seoul, KR;
Abstract
A magnetostrictive transducer that generates a large shear horizontal (SH) wave useful for non-destructive testing of a plate member, and method and apparatus for structural health monitoring by using the magnetostrictive transducer. The magnetostrictive transducer includes: a magnetostrictive patch array comprising a plurality of magnetostrictive patches that have different radii of curvature, and have the same center of curvature when arranged on a plate member and form an overall fan-shape; a static magnetic field forming unit comprising two magnets that are respectively installed on both sides of the magnetostrictive patch so that a magnetic field is formed in parallel to an arc direction of the magnetostrictive patch; and a dynamic magnetic field forming unit comprising a wound coil comprising a plurality of curved portions.