Analysis of Transient Scattering by a Metal Cylinder Covered with Inhomogeneous Lossy Material for Nondestructive Testing

被引：15

作者：

Nishimoto, Masahiko ^{[1
]}

Naka, Yoshihiro ^{[2
]}

机构：

[1] Kumamoto Univ, Kumamoto 8608555, Japan

[2] Kyushu Univ Hlth & Welf, Nobeoka 8828508, Japan

来源：

IEICE TRANSACTIONS ON ELECTRONICS | 2018年 / E101C卷 / 01期

基金：

日本学术振兴会;

关键词：

radar; nondestructive testing (NDT); reinforced concrete structures; corrosion;

D O I：

10.1587/transele.E101.C.44

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Transient scattering by a metal cylinder covered with inhomogeneous lossy material is analyzed for application of radar systems to nondestructive testing of reinforced concrete structures. First, inhomogeneous lossy material that is a model of corrosion by rust is approximated by a cylindrical multilayered medium, and analytic solution of a scattered field in frequency domain is derived. Next, time domain scattering response is calculated from the frequency domain data by using the inverse Fourier transform. Numerical results of pulse responses indicate that corrosion rate of the concrete can be evaluated by checking the waveform distortion of the pulse responses.

引用

页码：44 / 47

页数：4

共 5 条

[1]

Chew W. C., 1995, WAVES FIELDS INHOMOG

[2]

Crank J., 1975, DIFFUSION CYLINDER

[3] CALCULATION OF TRANSFER-FUNCTIONS OF 3-DIMENSIONAL INDENTED OBJECTS BY THE PHYSICAL OPTICS APPROXIMATION COMBINED WITH THE METHOD OF STATIONARY PHASE [J].