Experimental Study on Effect of Waveform and Energy of Pulsed Laser on Performance of Multi-Electrode Laser-Triggered Vacuum Switch
Lin Huazong1, Wang Ying1, He Zhenghao2, Fan Wenfang2
1.State Key Laboratory of Laser Technology Huazhong University of Science and Technology Wuhan 430074 China 2.State Key Laboratory of Advanced Electromagnetic Engineering and Technology Huazhong University of Science and Technology Wuhan 430074 China
Abstract：The effects of pulsed laser waveform on delay, jitter and lowest break-over voltage of multi-electrode laser-triggered vacuum switch (LTVS) of own design were studied. The influence of doublet pulse and singlet pulse in the triggering period and break-over period on the break-over characteristics of the main circuit was theoretically analyzed and experimentally studied. The results prove that singlet pulse with less pulse width leads to the less delay and jitter compared to doublet pulse, and the two have the same energy. Besides, singlet and doublet pulses lead to the same lowest break-over voltage. Basis and reference for optimizing the triggering laser pulse waveform are offered. The effects of different pulse energies on mass loss and loss ratio of target compositions were studied by changing the singlet pulse energy and using the field emission scanning electron microscope (FESEM), providing references to further improvement on target-electrode life.
林华中, 王英, 何正浩, 樊文芳. 脉冲激光波形和能量对多棒极型激光触发真空开关性能影响的实验研究[J]. 电工技术学报, 2017, 32(3): 194-199.
Lin Huazong, Wang Ying, He Zhenghao, Fan Wenfang. Experimental Study on Effect of Waveform and Energy of Pulsed Laser on Performance of Multi-Electrode Laser-Triggered Vacuum Switch. Transactions of China Electrotechnical Society, 2017, 32(3): 194-199.
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2017, Vol. 32 
