Usage of Conductive Polymer Composite as the Object Film of Eddy Current Gap Sensor

被引：21
作者：
Wang, Luheng [1 ]
Han, Yanyan [1 ]
Huang, Yannan [1 ]
机构：
[1] Northeastern Univ, Coll Informat Sci & Engn, Shenyang 110819, Peoples R China
来源：
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT | 2013年 / 62卷 / 12期
基金：
中央高校基本科研业务费专项资金资助;
关键词：
Carbon nanotube; conductive polymer composite; eddy current effect; gap sensor; noncontact measurement; silicone rubber; SILICONE-RUBBER COMPOSITE; ELECTRICAL-CONDUCTIVITY; GRAPHITE NANOPLATELETS; CARBON NANOTUBES; PRESSURE; NANOCOMPOSITES; ARRAY; RESISTANCE; STRAIN;
D O I：
10.1109/TIM.2013.2270920
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：
To realize the noncontact gap measurement based on eddy current effect when the object is not conductive, we fabricate a film made of conductive polymer composite and cover it on the surface of the nonconductive object. The experimental results on the lift-off effect show that the impedance of the coil with alternating current changes regularly with the variations in the distance between the coil and the composite object. This phenomenon indicates that there exists an eddy current composed of the tunneling current and the conduction current in the composite object. The results indicate that conductive polymer composite has the potential to replace metal as an object of an eddy current sensor system.
引用
收藏
页码：3202 / 3208
页数：7
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