Nizhny Novgorod, Nizhny Novgorod, Russian Federation
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.; DOI: https://doi.org/10.1029/2018GL081022; EDN: https://elibrary.ru/IXPJYM
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.; ; EDN: https://elibrary.ru/YKBTSW
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.; ; EDN: https://elibrary.ru/RLJKKH
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.; DOI: https://doi.org/10.1029/2017JD027997; EDN: https://elibrary.ru/APFVPD
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.; DOI: https://doi.org/10.1029/2019JD031826; EDN: https://elibrary.ru/IQRPVU
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.; DOI: https://doi.org/10.1029/2021JD035870; EDN: https://elibrary.ru/HTMCBX
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.