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空腔中B-dot低频特性的硬件补偿

卫兵 康军军 王杰 付佳斌 傅贞 丰树平

卫兵, 康军军, 王杰, 等. 空腔中B-dot低频特性的硬件补偿[J]. 强激光与粒子束, 2020, 32: 025021. doi: 10.11884/HPLPB202032.190309
引用本文: 卫兵, 康军军, 王杰, 等. 空腔中B-dot低频特性的硬件补偿[J]. 强激光与粒子束, 2020, 32: 025021. doi: 10.11884/HPLPB202032.190309
Wei Bing, Kang Junjun, Wang Jie, et al. Hardware compensation of B-dot low frequency characteristics in cavity[J]. High Power Laser and Particle Beams, 2020, 32: 025021. doi: 10.11884/HPLPB202032.190309
Citation: Wei Bing, Kang Junjun, Wang Jie, et al. Hardware compensation of B-dot low frequency characteristics in cavity[J]. High Power Laser and Particle Beams, 2020, 32: 025021. doi: 10.11884/HPLPB202032.190309

空腔中B-dot低频特性的硬件补偿

doi: 10.11884/HPLPB202032.190309
基金项目: 国家自然科学基金项目(11605181,11605188)
详细信息
    作者简介:

    卫 兵(1973—),男,高工,从事脉冲功率装置电参数测试技术研究;73wb@163.com

  • 中图分类号: TM835.4

Hardware compensation of B-dot low frequency characteristics in cavity

  • 摘要: 针对在空腔中的微分环(B-dot)探头输出信号存在低频增益的问题,分析了目前使用的“磁通穿透特征时间常数”一阶修正方法,提出了使用适当积分常数的积分器进行补偿的方法。对安装在同轴线及径向线电极孔中的B-dot进行实验,结果表明:当积分器的积分时间常数等于磁通穿透特征时间常数时,B-dot的测量结果与标准电流信号吻合。因此这也是空腔中的B-dot探头选取积分器的原则。该方法使用硬件直接获取了补偿后的测试结果,与软件修正方法比较操作较为简便。
  • 图  1  积分器等效电路

    Figure  1.  Equivalent circuit of integrator

    图  2  等式(1)的幅频特性

    Figure  2.  Amplitude-frequency response of equation (1)

    图  3  B-dot数值积分以及使用积分器的测量结果

    Figure  3.  Waveforms of B-dot with numerical integration and RC integrator

    图  4  测量短脉冲B-dot输出波形

    Figure  4.  Waveforms of B-dot

    图  5  磁加载实验负载电流波形

    Figure  5.  Current waveform of load

    图  6  磁加载实验B-dot的标定波形

    Figure  6.  Waveforms of B-dot and CVR in calibration

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    Zeng Zhengzhong. Introduction to practical high power pulse technology. Xi’an: Shannxi Science and Technology Press, 2003: 157-167
    [2] Rose D V, Welch D R, Miller C L, et al. 107-A load-current B-dot monitor: Simulations, design, and performance[J]. Phys Rev ST Accel Beams, 2010, 13: 040401. doi: 10.1103/PhysRevSTAB.13.040401
    [3] Wagoner T C, Stygar W A, Ives H C. Differential-output B-dot and D-dot monitors for current and voltage measurements on a 20-MA, 3-MV pulsed-power accelerator[J]. Phys Rev ST Accel Beams, 2008, 11: 100401. doi: 10.1103/PhysRevSTAB.11.100401
    [4] 呼义翔, 韩娟娟, 郭宁, 等. 磁绝缘线电流测量差模式B-dot探头[J]. 强激光与粒子束, 2012, 24(10):2511-2515. (Hu Yixiang, Han Juanjuan, Guo Ning, et al. Differential B-dot monitor used for current measure of magnetically insulated transmission lines[J]. High Power Laser and Particle Beams, 2012, 24(10): 2511-2515
    [5] 卫兵, 但加坤, 付佳斌, 等. 空腔中B-dot的低频响应特性[J]. 强激光与粒子束, 2016, 28:015026. (Wei Bing, Dan Jiakun, Fu Jiabin, et al. Low frequency response characteristics of B-dot monitor in cavity[J]. High Power Laser and Particle Beams, 2016, 28: 015026
    [6] 卫兵, 卿燕玲, 丰树平, 等. 测量数兆安脉冲电流的探头设计与标定[J]. 强激光与粒子束, 2015, 27:085002. (Wei Bing, Qing Yanling, Feng Shuping, et al. Current measurement for a four level magnetically-insulated transmission line[J]. High Power Laser and Particle Beams, 2015, 27: 085002
    [7] 卫兵, 傅贞, 王玉娟, 等. 无源RC积分器频率响应特性分析[J]. 高电压技术, 2008, 34(1):53-56. (Wei Bing, Fu Zhen, Wang Yujuan, et al. Frequency response analysis of passive RC integrator[J]. High Voltage Engineering, 2008, 34(1): 53-56
    [8] 卫兵, 方东凡, 卿燕玲, 等. 亚纳秒脉冲高电压测量探头[J]. 强激光与粒子束, 2012, 24(6):1497-1501. (Wei Bing, Fang Dongfan, Qing Yanling, et al. D-dot monitor for sub-nanosecond high voltage pulse measurement[J]. High Power Laser and Particle Beams, 2012, 24(6): 1497-1501
    [9] 王贵林, 郭帅, 沈兆武, 等. 基于聚龙一号装置的超高速飞片发射实验研究进展[J]. 物理学报, 2014, 63:196201. (Wang Guilin, Guo Shuai, Shen Zhaowu, et al. Recent advances in hyper-velocity flyer launch experiments on PTS[J]. Acta Physica Sinica, 2014, 63: 196201 doi: 10.7498/aps.63.196201
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    Wei Bing, Fu Zhen, Qing Yanling, et al. A coaxial passive RC integrator: CN206420938U. 2017-08-18
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出版历程
  • 收稿日期:  2019-08-12
  • 修回日期:  2019-12-03
  • 刊出日期:  2019-12-26

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