Нижний Новгород, Нижегородская область, Россия
The design of an autonomous noise-proof current meter on a high-voltage electrode is proposed, based on the use of an annular non-inductive shunt with its axially symmetrical connection to the input of the data acquisition module. The parameters of two design options are calculated: high-frequency, with a frequency band of 0–10 GHz, but with a lower limit of the measured current, and relatively low-frequency, with a band of 0–100 MHz, and a high limit of the measured current.
current meter, tubular shunt, cutoff frequency
1. P. Wang and G. Zhang, “The Measurement Method for Corona Discharge Current Under High-Voltage Environment,” IEEE Transactions on Instrumentation and Measurement, vol. 57, no. 8, pp. 1786-1790, Aug. 2008, doi: https://doi.org/10.1109/tim.2008.922069.
2. X. Zhao et al., “On the Velocity-Current Relation of Positive Leader Discharges,” Geophysical Research Letters, vol. 46, no. 1, pp. 512-518, Jan. 2019, doi: https://doi.org/10.1029/2018gl081022.
3. X. Zhao, J. He, B. Luo, L. Jia, Y. Yang, and P. Xiao, “Relaxation process of the discharge channel near the anode in long air gaps under positive impulse voltages,” Journal of Physics D : Applied Physics, vol. 50, no. 48, pp. 485206-485206, Nov. 2017, doi: https://doi.org/10.1088/1361-6463/aa9266.
4. Y. Yue and J. He, “Digital time-resolved optical measurement of discharge currents in long air gaps,” Review of Scientific Instruments, vol. 84, no. 8, pp. 085107-085107, Aug. 2013, doi: https://doi.org/10.1063/1.4817208.
5. Alexander Yu. Kostinskiy et al., “Abrupt Elongation (Stepping) of Negative and Positive Leaders Culminating in an Intense Corona Streamer Burst: Observations in Long Sparks and Implications for Lightning,” Journal of Geophysical Research : Atmospheres, vol. 123, no. 10, pp. 5360-5375, May 2018, doi: https://doi.org/10.1029/2017jd027997.
6. N. A. Bogatov et al., “Experimental Investigation of the Streamer Zone of Long-Spark Positive Leader Using High-Speed Photography and Microwave Probing,” Journal of Geophysical Research : Atmospheres, vol. 125, no. 11, Jun. 2020, doi: https://doi.org/10.1029/2019jd031826.
7. N. A. Bogatov, V. S. Syssoev, D. I. Sukharevsky, A. I. Orlov, V. A. Rakov, and E. A. Mareev, “An Experimental Study of the Breakthrough-Phase and Return-Stroke Processes in Long Sparks,” Journal of Geophysical Research : Atmospheres, vol. 127, no. 2, Jan. 2022, doi: https://doi.org/10.1029/2021jd035870.
8. A. J. Schwab, “Low-Resistance Shunts for Impulse Currents,” IEEE Transactions, vol. PAS-90, no. 5, pp. 2251-2257, Sep. 1971, doi: https://doi.org/10.1109/tpas.1971.293072.
9. V. I. Smirnov, A course of higher mathematics, vol. II, § 21, The equation of thermal conduction. Pergamon Press, 1964.
