使用超电磁材料制作无损检测探头的模拟分析

许占显; 孔立堵

使用超电磁材料制作无损检测探头的模拟分析

空军第一航空学院, 信阳 464000

详细信息

作者简介:
许占显(1964-), 男, 教授, 电磁场与微波技术专业博士, 从事无损检测与电磁隐身研究。

中图分类号: TG115.28
计量
- 文章访问数: 2
- HTML全文浏览量: 0
- PDF下载量: 0
出版历程
- 收稿日期: 2009-07-02
- 刊出日期: 2010-05-09

Simulation Analysis of Nondestructive Testing Probe Made of Metamaterial

摘要

摘要: 为了探索超电磁材料在无损检测领域的应用, 采用双负超电磁材料球壳包覆一个微小电流元的模型, 应用基于有限元法(FEM)的Ansoft HFSS软件, 模拟超电磁材料改善无损检测探头电磁辐射的特性。电磁模型的内半径r1=1.0 mm, 外径为变量; 介质εr=μr=-3, 电损耗和磁损耗为0.1; 电流元为长0.3 mm、直径0.2 mm, 激励电流1 mA, 频率为10 GHz, 辐射边界。模拟了三种情形下近电场随球壳内外径比值的变化、涂覆超电磁材料的探头在表面开口裂缝附近形成的电场, 并与涂覆常规电磁材料的探头形成的近场量值进行对比。试验得出, 涂覆超电磁材料的探头其近场电磁特性优于涂覆常规材料和不涂材料, 可用于开发未来超电磁材料的无损检测探头。
- 超电磁材料探头 /
- 无损检测 /
- 裂纹 /
- Ansoft HFSS软件
Abstract: For investigating application of metamaterial at nondestructive inspection realm, simulation of improving of a nondestructive testing(NDT) probe electromagnetic radiant property by Metamaterials(MMs) cover a tiny current element is investigated and analyzed using Ansoft HFSS based on finite element method(FEM), whose permittivity and relative permeability are both negative. Electromagnetic model: ideal MMs ball shell film is with inner radius of 1 mm and outer radius variation, and the shell’s relative permittivity and relative permeability are all -3, dielectric loss tangent and magnetic loss tangent are all 0.1; and exciting current element length is with 0.3 mm, diameter 0.1 mm, value 1 mA at frequency 10 GHz; and simulation is with radiation boundary conditions. Simulating near electromagnetic field variation with ratio of inner radius and out radius, so near and local field of MMs probe on surface crack, and comparing near field value of probe coating common material are finished. Simulation results can be seen that for MMs film probe near electromagnetic field property is obviously better compared to other two kinds of structures without coating medium and coating with common medium, and metamaterial NDT electromagnetic probe including sound wave probe can be developed for potential practical applications in future.
- Metamaterial probe /
- Nondestructive testing /
- Crack /
- Ansoft HFSS software

HTML全文

参考文献(22)

[1]	Veselago V G. The electrodynamics of substances with simultaneously negative values of ε and μ［J］. Soviet Physics USPEKHI, 1968(10): 509-514.
[2]	Pendry J B, Holden A L, Stewart W J, et al. Extremely low frequency plasmons in metallic mesostructures［J］. Physical Review Letters, 1996, 76(25): 4773.
[3]	Pendry J B, Holden A J, Robbins D J, et al. Magnetism from conductors and enhanced nonlinear phenomena［J］. IEEE Transactions on Microwave Theory and Techniques, 1999, 47(11): 2075-2084.
[4]	Shelby R A, Smith D R, Schultz S. Experimental verification of a negative index of refraction［J］. Science, 2001, 292: 77-79.
[5]	Houck A A, Brock J B, Chuang I L. Experimental observations of a left-handed material that obeys snell’s law［J］. Physical Review Letters, 2003, 90(13): 137401.
[6]	Parazzoli C G, Greegor R B, Li K, et al. Experimental verification and simulation of negative index of refraction using Snells law［J］. Physical Review Letters, 2003, 90: 107401.
[7]	Smith D R, Schurig D, Pendry J B. Negative refraction of modulated electromagnetic waves［J］. Appl Phys Lett, 2002(81): 2713-2715.
[8]	Pendry J B. Negative refraction makes a perfect lens［J］. Phys Rev Lett, 2000, 85(18): 3966-3969.
[9]	Leonhardt U. Optical conformal mapping［J］. Science, 2006(312): 1777-1780.
[10]	Pendry J B, Smith D R. Reversing light with negative refraction［J］.Physics Today, 2004(57): 37-43.
[11]	Parazzoli C G, Greegor R B, Nielsen J A, et al. Performance of a negative index of refraction lens［J］. Physical Review Letters, 2004, 84(17): 3232-3234.
[12]	许占显, 林为干, 孔立堵.可控Metamaterial与结构的电磁波及特性研究［J］.材料导板, 2007, 21(5): 132-137.
[13]	郑晴, 赵晓鹏, 李明明, 等.缺陷对左手材料负折射的调控行为［J］.物理学报, 2006(12): 6441-6446.
[14]	郑晴, 赵晓鹏, 付全红, 等.左手材料的反射特性与负折射率行为［J］.物理学报, 2005(12): 5683-5687.
[15]	张世鸿, 陈良, 徐彬彬, 等.左手材料研究进展及应用前景［J］.功能材料, 2006(1): 1-5.
[16]	康雷.左手材料缺陷效应的研究［D］.西安: 西北工业大学, 2005: 10-40.
[17]	Zoran Jaksic, Nils Dalarsson, Milan Maksimovic. Electromagnetic structures containing negative refractive index metamaterials［J］. TELSIKS, 2005(1): 145.
[18]	Smith D R, Vier D C, Kroll N, et al. Direct calculation of permeability and permittivity for a left-handed metamaterial［J］. Applied Physics Letters, 2000, 77(14): 2246-2248.
[19]	Shen J T, Platzman P M. Near field imaging with negative dielectric constant lenses［J］. Appl Phys Lett, 2002, 80(18): 3286-3288.
[20]	Fang N, Zhang X. Imaging properties of a metamaterial superlens［J］. Appl Phys Lett, 2003(82): 161.
[21]	Djermoun A, de Lustrac A, Gadot F, et al. Design and characterization of a controllable left-handed material at microwave frequencies［C］. European Microwave Conference, 2005, 2(4-6): 917-920.
[22]	Marques R, Martel J, Mesa F, et al. Left-handed-media simulation and transmission of EM waves in subwavelength split-ring-resonator-loaded metallic waveguides［J］. Physical Review Letters, 2002, 89(18): 183901-183904.

施引文献

资源附件(0)

计量

文章访问数: 2
HTML全文浏览量: 0
PDF下载量: 0
被引次数: 0

使用超电磁材料制作无损检测探头的模拟分析

作者简介: 许占显(1964-), 男, 教授, 电磁场与微波技术专业博士, 从事无损检测与电磁隐身研究。

计量

出版历程

Simulation Analysis of Nondestructive Testing Probe Made of Metamaterial

计量

出版历程

目录

作者简介:
许占显(1964-), 男, 教授, 电磁场与微波技术专业博士, 从事无损检测与电磁隐身研究。