High Power Laser and Particle Beams, Volume. 35, Issue 3, 035002(2023)
Development of miniature pseudo-spark switch
Figures & Tables(12)
Fig. 1. Typical structure of pseudo-spark switch & voltage equipotential distribution diagram of pseudo-spark discharge
Fig. 2. Schematic diagram of miniature pseudo-spark switch and equipotential distribution diagram of the cusp and schematic diagram of conventional single-gap pseudo-spark switch
Fig. 3. Comparison between conventional pseudo-spark switch and miniature pseudo-spark switch
Fig. 7. Diagram of the relationship between forward anode voltage and peak anode pulse current
Table 1. Comparison between miniature pseudo-spark switch and conventional pseudo-spark switch
View tableView in ArticleTable 1. Comparison between miniature pseudo-spark switch and conventional pseudo-spark switch
peak forward anode voltage (max)/kV peak anode current/kA hydrogen reservoir size miniature pseudo-spark switch 25 40 no ϕ25 mm×30 mm conventional pseudo-spark switch 40 80 yes ϕ114 mm×87.6 mm
Table 2. Experimental data of miniature pseudo-spark switch
View tableView in ArticleTable 2. Experimental data of miniature pseudo-spark switch
peak forward anode voltage/kV peak anode current/kA delay time/ns 2 8.4 245 3 13.3 250 4 17.9 268 5 22.8 247 6 27.6 245 7 31.8 266 8 36.0 275 9 39.9 252
Table 3. Reliability test of miniature pseudo-spark switch
View tableView in ArticleTable 3. Reliability test of miniature pseudo-spark switch
items conditions and requirements results high temperature storage non-working state; T=55 ℃; t=48 h; recovery time: ≥2 h. Ua=9 kV, Ia=40 kA; once/30 s, 10 times, no breakdown, no corona low temperature storage non-working state; T=−40 ℃; t=24 h; recovery time: ≥2 h. Ua=9 kV, Ia=40 kA; once/30 s, 10 times, no breakdown, no corona temperature cycle non-working state; T1=−40 ℃, t1=2 h; T2=55 ℃, t2=2 h; shift time≤5 min; N=3; recovery time :12 h. Ua=9 kV, Ia=40 kA; once/30 s, 10 times, no breakdown, no corona sweep frequency vibration Ua=14 kV, PSD: 0.15 g2/Hz, t=10 min, once for axial and radial. no breakdown, no corona
Table 4. Comparison between miniature pseudo-spark switch, trigger tube and miniature thyratron
View tableView in ArticleTable 4. Comparison between miniature pseudo-spark switch, trigger tube and miniature thyratron
peak forward anode voltage/ self-breakdown voltage/kV minimum operate voltage/kV peak anode current/kA minimum trigger voltage/kV delay time/ns miniature pseudo-spark switch 10 0.5 40 0.2 280 RQ-10 trigger tube 11 6 32 4.5 − ZQM-9901 thyratron 10 0.5 0.2 0.18 350 hot cathode life/times size (mm×mm) total height/mm draw ability of reverse current miniature pseudo-spark switch no ＞20000 ϕ25 mm ×30 mm 53 yes RQ-10 trigger tube no 1000 ϕ36.2 mm ×32.5 mm 36 yes ZQM-9901 thyratron yes − ϕ25 mm ×53 mm 79 no
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Zheng Zhao, Liang Zhou, Xiaoyan Luan, Ming Zhang, Hongfei Yang. Development of miniature pseudo-spark switch[J]. High Power Laser and Particle Beams, 2023, 35(3): 035002
Paper Information
Category: Pulsed Power Technology
Received: Sep. 13, 2022
Accepted: --
Published Online: Mar. 9, 2023
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