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一种测量纳秒级高电压脉冲的D-dot探测器

潘子龙 程新兵 陈绒 陈侠 张瀚文 张仁杰 钱宝良

潘子龙, 程新兵, 陈绒, 等. 一种测量纳秒级高电压脉冲的D-dot探测器[J]. 强激光与粒子束. doi: 10.11884/HPLPB202537.240319
引用本文: 潘子龙, 程新兵, 陈绒, 等. 一种测量纳秒级高电压脉冲的D-dot探测器[J]. 强激光与粒子束. doi: 10.11884/HPLPB202537.240319
Pan Zilong, Cheng Xinbing, Chen Rong, et al. A D-dot monitor for measuring nanosecond high voltage pulses[J]. High Power Laser and Particle Beams. doi: 10.11884/HPLPB202537.240319
Citation: Pan Zilong, Cheng Xinbing, Chen Rong, et al. A D-dot monitor for measuring nanosecond high voltage pulses[J]. High Power Laser and Particle Beams. doi: 10.11884/HPLPB202537.240319

一种测量纳秒级高电压脉冲的D-dot探测器

doi: 10.11884/HPLPB202537.240319
基金项目: 湖南省研究生科研创新项目(CX20220064)
详细信息
    作者简介:

    潘子龙,sxbjtb@126.com

    通讯作者:

    程新兵,120chch@163.com

    陈 绒,chenrong0101@163.com

  • 中图分类号: TM835

A D-dot monitor for measuring nanosecond high voltage pulses

  • 摘要: 设计了一种测量纳秒级高电压脉冲的D-dot探测器,包括微分探头和无源积分器的设计、仿真和实验。该探测器的探头电极可以根据不同的测量器件进行更换,探头电极的轴向长度也可以根据测量需求进行调节。采用CST软件对该探头的电场分布开展了静电场模拟分析,并进行了结构优化,同时利用OrCAD/Pspice软件对D-dot探头、积分器和探测器的幅频响应特性进行了分析,确保探测器的工作频率满足设计要求。利用设计的D-dot探测器开展了纳秒级高电压脉冲测量实验,实验结果表明,设计的D-dot探测器满足前沿时间约37 ns、电压幅值约597 kV的高电压脉冲测量需求。
  • 图  1  电容分压器测量原理图

    Figure  1.  Schematic diagram of capacitive voltage divider measurement

    图  2  可调节式的D-dot探头结构示意图

    Figure  2.  Structure diagram of adjustable D-dot probe

    图  3  D-dot探头的电场分布图

    Figure  3.  Electric field distribution diagram of the D-dot probe

    图  4  D-dot探头的幅频特性曲线

    Figure  4.  Amplitude-frequency response of the D-dot probe

    图  5  积分器原理图

    Figure  5.  Schematic diagram of the integrator

    图  6  积分器等效电路图

    Figure  6.  Equivalent circuit diagram of the integrator

    图  7  分布参数对积分器输出波形的影响

    Figure  7.  Influence of distributed parameters on the output waveform of the integrator

    图  8  积分器的方波响应实验和模拟结果

    Figure  8.  Experimental and simulation results of square wave response

    图  9  积分器的幅频特性曲线

    Figure  9.  Amplitude-frequency response of the integrator

    图  10  D-dot探测器的幅频特性曲线

    Figure  10.  Amplitude-frequency response of the D-dot monitor

    图  11  D-dot探测器标定典型实验结果

    Figure  11.  Typical calibration experimental results of the D-dot monitor

    图  12  D-dot探头缩进接地外壳不同距离的归一化输出波形图

    Figure  12.  Normalized output waveforms of the D-dot monitor with different distance between the probe and the ground plate

    图  13  D-dot探测器高电压实验结果

    Figure  13.  High voltage experimental result of the D-dot monitor

    表  1  积分器等效电路参数表

    Table  1.   Parameters of the integrator equivalent circuit

    R/kΩ C1/pF L1/nH C/nF R2 L2/nH Rm Cm/pF Lm/nH
    3.0 0.1 20 0.75 0.05 1 50 2 20
    下载: 导出CSV

    表  2  不同探头电极位置的D-dot探测器灵敏度

    Table  2.   Sensitivities of the D-dot monitor with different location of the electrode

    distance between the electrode and the ground plate/mm sensitivity/(kV·V−1)
    0 55.15
    1.5 60.67
    3.0 69.00
    4.5 76.63
    下载: 导出CSV
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出版历程
  • 收稿日期:  2024-09-11
  • 修回日期:  2024-10-26
  • 录用日期:  2024-11-27
  • 网络出版日期:  2025-01-03

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