EVALUATION OF AN ELECTRIC FIELD SENSOR FOR NONDESTRUCTIVE MATERIAL INSPECTION

被引：0

作者：

Kalyanasundaram, Kayatri ^{[1
]}

Arunachalam, Kavitha ^{[1
]}

机构：

[1] Indian Inst Technol Madras, Dept Engn Design, Madras 600036, Tamil Nadu, India

来源：

REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLS 32A AND 32B | 2013年 / 1511卷

关键词：

Electric Field Sensor; Nondestructive Material Testing;

D O I：

10.1063/1.4789227

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

An electric field sensor is fabricated on a 125 micron thick flexible dielectric substrate for electromagnetic (EM) nondestructive material inspection at 915 MHz. The sensor consists of an electrically short dipole antenna and a radio frequency (RF) diode detector connected to a pair of high impedance screen printed carbon lines. The DC component of the rectified diode voltage conveyed across the high impedance lines is measured using a data acquisition circuit. Sensor measurements are validated with simulated data for a conformal patch antenna operating at 915 MHz. Sensor performance for EM nondestructive testing (NDT) is evaluated using phantom defects in low loss dielectric slabs. Preliminary results indicate sensor utility for EM NDT and support further testing on realistic defects.

引用

页码：1555 / 1561

页数：7

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