Light-electricity method for measuring switch-on time of plasma antennas

Zhao Jiansen; Sun Yang; Ni Yuwei; Guo Xiaoliang; Zhang Zhitao

doi:10.11884/HPLPB201729.170042

Volume 29 Issue 05

Apr. 2017

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Article Navigation > High Power Laser and Particle Beams > 2017 > 29(05): 052001

Xia Zhiyang, Kuang Yuanyuan, Lu Yan, et al. High-resolution reconstruction of the ablative RT instability flow field via convolutional neural networks[J]. High Power Laser and Particle Beams, 2024, 36: 122004. doi: 10.11884/HPLPB202436.240015

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Zhao Jiansen, Sun Yang, Ni Yuwei, et al. Light-electricity method for measuring switch-on time of plasma antennas[J]. High Power Laser and Particle Beams, 2017, 29: 052001. doi: 10.11884/HPLPB201729.170042

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Light-electricity method for measuring switch-on time of plasma antennas

doi: 10.11884/HPLPB201729.170042

1.
Merchant Marine College,Shanghai Maritime University,Shanghai 201306,China;
2.
Department of Physics,Dalian Maritime University,Dalian 116026,China

Received Date: 2017-02-15
Rev Recd Date: 2017-03-16
Publish Date: 2017-05-15

Abstract

Abstract

The optical signals are converted into electrical signals of same time characteristics by the technique of the in-situ spectroscopic detection. The switch-on time is obtained by calculating the time difference of the exciting and electrical signals. Results show that the proposed method can effectively measure the switch-on time of DC and HF AC plasma antennas. The switch-on time of plasma antennas driven by DC and kHz AC power supplies are about 1 ms, and that of plasma antennas driven by MHz power supplies are approximately 0.5 ms. The error of 50 Hz AC plasma antenna is very large due to the unstable discharge state. The value of switch-on time is greatly related to the exciting power and the response time of the power supplies. In a certain range, with the increase of discharge power, the switch-on time of the antenna is shortened. Besides, the error is reduced by about 1%-2%.
- plasma,
- antenna,
- switch-on time,
- light-electricity time difference

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