Design of eddy current-based dielectric constant meter for defect detection in glass fiber reinforced plastics
Design of eddy current-based dielectric constant meter for defect detection in glass fiber reinforced plastics
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DOI：
10.1016/j.ndteint.2015.04.005
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发表时间：
2015-09-01
影响因子：
4.2
通讯作者：
Suzuki, Yoshiro
中科院分区：
文献类型：
--
作者：
Mizukami, Koichi;Mizutani, Yoshihiro;Suzuki, Yoshiro
介绍了一种用于非导电玻璃纤维增强塑料检测的涡流检测探头的设计。由于磁场包含与被测材料的介电常数有关的信息，涡流检测通过检测每种材料的完整部分和缺陷部分之间的介电常数差异，为非导电材料的缺陷检测提供了可能。我们分析研究了一种适合于介电常数测量的探针的设计。实验研究证明，所提出的探针可以检测到距离玻纤增强塑料样品表面2mm的狭缝缺陷和平底孔。(C) 2015 Elsevier Ltd.版权所有。
This paper presents the design of an eddy current testing probe for inspection of non-conductive glass fiber reinforced plastics. Because the magnetic field contains information pertaining to the permittivity of materials under test, eddy current testing offers the possibility of flaw detection in non-conductive materials through detection of the difference in permittivity between the intact part and the defective part of each material. We analytically investigated the design of a probe suitable for dielectric constant measurements. Experimental studies proved that the proposed probe can detect slit defects and flat-bottomed holes located 2 mm away from the surface of the glass fiber reinforced plastic samples. (C) 2015 Elsevier Ltd. All rights reserved.