Xin Yu, Liang-Wen Qi, Chong-Xiao Zhao, Chun-Sheng Ren. Comparative study of positive and negative pulsed discharge plasma characteristics of coaxial gun [J]. Acta Physica Sinica, 2020, 69(3): 035202-1
- Acta Physica Sinica
- Vol. 69, Issue 3, 035202-1 (2020)
Fig. 1. Experimental schematic diagram.实验原理图
Fig. 2. Coaxial plasma gun of experiment.实验同轴枪
Fig. 3. Plasma dynamic diagram of coaxial gun.同轴枪等离子体动力图
Fig. 4. Theoretical model diagrams of the current sheets of positive (a) and negative (b) pulsed plasma.正(a)和负(b)脉冲等离子体电流片理论模型图
Fig. 5. Original image of 7 kV negative pulsed discharge of argon.7 kV氩气负脉冲放电原图
Fig. 6. RGB image processing for the original images of 7 kV (a) positive and (b) negative pulsed discharge of argon.7 kV氩气(a)正、(b)负脉冲放电照片的RGB图像处理
Fig. 7. Image brightness processing for the original images of 7 kV (a) positive and (b) negative pulsed discharge of argon.7 kV氩气(a)正、(b)负脉冲放电照片的图像亮度处理
Fig. 8. For 7 kV negative pulsed discharge, schematic of X -axis pixel point 300, 700, 1500 of brightness processing blueprint.
7 kV负脉冲放电条件下, 亮度处理蓝图X 轴像素点300, 700, 1500位置示意图
Fig. 9. Brightness radial distribution of (a) positive, (b) negative pulsed discharge blueprint at its X -axis pixel point 300, 700, 1500.
(a)正、(b)负脉冲放电蓝图X 轴像素点300, 700, 1500 亮度径向分布
Fig. 10. Fast-framing camera images of first (a), (c) and second (b), (d) plasmoid jet of 7 kV, 10 Pa argon positive, negative pulsed discharge: (a), (b) Positive pulsed discharge; (c), (d) negative pulsed discharge.7 kV, 10 Pa氩气正、负脉冲放电第一(a), (c)和第二(b), (d)团等离子体喷射高速相机拍照照片 (a), (b)正脉冲放电; (c), (d)负脉冲放电
Fig. 11. Current, optical signal, and magnetic signal waveform for 5.5 kV, 10 Pa argon positive (a), negative (b) pulsed discharge.5.5 kV, 10 Pa氩气正(a)、负(b)脉冲放电电流、光信号和磁信号波形图
Fig. 12. Magnetic field measurement of coaxial gun magnetic probe.同轴枪磁探针磁场测量
Fig. 13. Comparison of positive and negative pulsed plasma speed of 10 Pa argon.10 Pa氩气正负脉冲等离子体速度对比
Fig. 14. Comparison of positive and negative pulsed plasma density of 10 Pa argon.10 Pa氩气正负脉冲等离子体密度对比
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