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《High Voltage Engineering》 2009-10
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Application of Ultrasonic Flaw Detector to Internal Defects in Composite Insulators

XIE Cong-zhen1,ZHANG Yao1,HAO Yan-peng1,YUAN Xue-jun2,WEI Qiang-hua3(1.Electric Power College,South China University of Technology,Guangzhou 510640,China;2.Wuhan Zhongke Innovation Technology Co.,Ltd.,Wuhan 430079,China;3.Dongguan Gaoneng Electric Co.,Ltd.,Dongguan 523012,China)  
In order to eliminate the danger for the safe operation of composite insulator,this paper presented one method to detect the flaw of the bonding between sheath and rod by using the ultrasonic flaw detector.This method determines the flaw on the base of the echo quality of the ultrasonic wave with 0.5~10 MHz in different material.Much research indicated that the method of radio frequency detection was better than the methods of full detection,positive detection and negative detection.Test results for three materials of piezoelectric chip,Sound-Transparent-layer and silicone rubber sheath demonstrate that full transmission was occur by the matching of the acoustic impedance when the thickness of the Sound-Transparent-layer is one quarter of the wave.The method of the radio frequency wave amplitude was used to detect the large area bonding between housing and core.The other method by the echo of the radio frequency was used to detect the bubble and the dregs in the insulation material.It is an effective non-destructive technology for detecting the inner defects of composite insulator.
【CateGory Index】: TM216.3
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【Citations】
Chinese Journal Full-text Database 6 Hits
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【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 XIAO Jing-song, YAN Tian-peng (Enhanced Heat Transfer and Energy Conservation, Key Lab of Ministry of Education, Beijing University of Technology, Beijing 100022, China);Numerical Analysis of NDT of Wind Turbine Blades Using Infrared Imaging[J];Journal of Beijing University of Technology;2006-01
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3 HE Yue-jin1,2,ZHANG Heng1(1.School of Mechanical Engineering,Zhengzhou University,Zhengzhou 450052,China;2.School of Electromechanical Engineering,Zhengzhou Institute of Light Industry,Zhengzhou 450002,China);EXPERIMENTAL STUDY OF CRACK DIAGNOSIS FOR COMPOSITE LAMINATED PLATES[J];Fiber Reinforced Plastics/Composites;2008-02
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5 ZHENG Li-sheng,DAI Yong-chao,YANG Xiao-lin,XIAN Ming-le(Staff Room of Airplane Maintenance,First Aeronautical College of Air Fcrce,Xinyang 464000,China);RESEARCH ON LOW-ENERGY IMPACT OF AIRCRAFT COMPOSITE MATERIAL BASED ON INFRARED THERMAL IMAGING TESTING[J];Fiber Reinforced Plastics/Composites;2009-01
6 JIANG Zhi-feng1,2,WU Rui-ming1,WU Zuo-lun1,SONG Li-jun3(1.School of Mechanical & Automotive Engineering,Zhejiang University of Science and Technology,Hangzhou 310023,China;2.Zhejiang Province Institute of Metrology,Hangzhou 310013,China;3.NORINDAR International,Shijiazhuang 050011,China);DESIGN AND STUDY OF ULTRASONIC TEST SYSTEM FOR VOID CONTENT IN COMPOSITE MATERIALS[J];Fiber Reinforced Plastics/Composites;2009-04
7 XU Li ZHANG Xinghong HAN Jiecai (Center for Composite Materials and Structure,Harbin Institute of Technology,Harbin 150001);Review of NDE of Composite Materials in Aerospace Fields[J];Materials Review;2005-08
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【Secondary Citations】
Chinese Journal Full-text Database 10 Hits
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