期刊
ULTRASONICS
卷 62, 期 -, 页码 3-19出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ultras.2015.05.015
关键词
Magnetostrictive patch transducer; Ultrasonic non-destructive testing; Waveguides
资金
- National Research Foundation of Korea (NRF) - Ministry of Science, ICT & Future Planning, Korea through the Institute of Advanced Machines and Design at Seoul National University [2015-021967, 2014-048162, 2014M3A6B3063711]
- National Research Foundation of Korea [2014M3A6B3063711, 2009-0094042, 2011-0017445] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
A magnetostrictive patch transducer (MPT) is a transducer that exploits the magnetostrictive phenomena representing interactions between mechanical and magnetic fields in ferromagnetic materials. Since MPT technology was mainly developed and applied for nondestructive ultrasonic testing in waveguides such as pipes and plates, this paper will accordingly review advances of this technology in such a context. An MPT consists of a magnetic circuit composed of permanent magnets and coils, and a thin magnetostrictive patch that works as a sensing and actuating element which is bonded onto or coupled with a test waveguide. The configurations of the circuit and magnetostrictive patch therefore critically affect the performance of an MPT as well as the excited and measured wave modes in a waveguide. In this paper, a variety of state-of-the-art MPT configurations and their applications will be reviewed along with the working principle of this transducer type. The use of MPTs in wave experiments involving phononic crystals and elastic metamaterials is also briefly introduced. (C) 2015 The Authors. Published by Elsevier B.V.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据