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Rogowski线圈信号电阻对纳秒级脉冲大电流的响应
引用本文:张瑜,刘金亮,文建春,殷毅,冯加怀,梁波.Rogowski线圈信号电阻对纳秒级脉冲大电流的响应[J].强激光与粒子束,2009,21(10).
作者姓名:张瑜  刘金亮  文建春  殷毅  冯加怀  梁波
作者单位:国防科学技术大学 光电科学与工程学院, 长沙 410073
基金项目:国家高技术发展计划项目,国家自然科学基金项目 
摘    要: 研制了一种自积分型Rogowski线圈,从电路理论和电路仿真角度分析了信号电阻的寄生电感和线圈对地电容对测量信号的影响。采用电阻并联的方法,制作了小电感信号电阻。在定标和大电流测量实验中,小电感信号电阻的使用,消除了测量信号的平顶振荡和波形畸变,验证了理论分析的正确性。经定标,采用小电感信号电阻的Rogowski线圈对方波脉冲前沿的响应为11 ns,灵敏度为4.25 mV·A-1。该线圈性能稳定,已用于测量长脉冲强流电子束加速器二极管的电流,测得的电流波型平顶较好,半高脉宽为180 ns,幅度约为15.36 kA。

关 键 词:Rogowski线圈  信号电阻  寄生电感  对地电容  定标  灵敏度
收稿时间:1900-01-01;

Sampling resistor's response of Rogowski coil to ns-grade high pulse current
Zhang Yu,Liu Jinliang,Wen Jianchun,Yin Yi,Feng Jiahuai,Liang Bo.Sampling resistor's response of Rogowski coil to ns-grade high pulse current[J].High Power Laser and Particle Beams,2009,21(10).
Authors:Zhang Yu  Liu Jinliang  Wen Jianchun  Yin Yi  Feng Jiahuai  Liang Bo
Institution:College of Optoelectronic Science and Engineering, National University of Defense Technology, Changsha 410073, China
Abstract:A kind of self-integrated Rogowski coil is designed. Through circuit theory and simulation analyses, the impacts on the measured signal, which are caused by the sampling resistor’s residual inductance and the coil’s ground capacitance, have been studied. By shunt-wound method, we have made and calibrated a low-inductance sampling resistor. In the calibration and measure experiments, oscillation and deformation of the measured signal were eliminated resistor. And the theoretical analyses are supported by the experiments. The Rogowski coil’s responding time to square pulse signal is 11 ns, and its sensitivity is 4.25 mV/A. For its good stability, we use the coil to measure the current of the diode of the long-pulsed intense electron beam accelerator and get the current waveform with flat-
Keywords:sampling resistor  residual inductance  ground capacitance  calibration  sensitivity
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