Wang Songsong, Shu Ting, Yang Hanwu
College of Opto-electronic Science and Engineering, National University of Defense Technology, Changsha 410073, People's Republic of China.
Rev Sci Instrum. 2012 Aug;83(8):084703. doi: 10.1063/1.4740522.
In our lab, a kind of glass-ceramic slab has been chosen to study the issues of applying solid-state dielectrics to pulse forming lines (PFLs). Limited by the manufacture of the glass-ceramic bulk with large sizes, a single ceramic slab is hard to store sufficient power for the PFL. Therefore, a modularized PFL design concept is proposed in this paper. We regard a single ceramic slab as a module to form each single Blumlein PFL. We connect ceramic slabs in series to enlarge pulse width, and stack the ceramic Blumlein PFLs in parallel to increase the output voltage amplitude. Testing results of a single Blumlein PFL indicate that one ceramic slab contributes about 11 ns to the total pulse width which has a linear relation to the number of the ceramic slabs. We have developed a prototype facility of the 2-stage stacked Blumlein PFL with a length of 2 ceramic slabs. The PFL is dc charged up to 5 kV, and the output voltage pulse of 10 kV, 22 ns is measured across an 8 Ω load. Simulation and experiment results in good agreement demonstrate that the modularized design is reasonable.
在我们实验室，已选用一种微晶玻璃平板来研究将固态电介质应用于脉冲形成线（PFL）的相关问题。受限于大尺寸微晶玻璃块体的制造工艺，单个陶瓷平板难以存储足够能量供脉冲形成线使用。因此，本文提出了一种模块化脉冲形成线设计理念。我们将单个陶瓷平板视为一个模块来构成每个单Blumlein脉冲形成线。我们将陶瓷平板串联以增大脉冲宽度，并将陶瓷Blumlein脉冲形成线并联堆叠以提高输出电压幅度。单个Blumlein脉冲形成线的测试结果表明，一个陶瓷平板对总脉冲宽度的贡献约为11 ns，且与陶瓷平板的数量呈线性关系。我们已研制出一个由2个陶瓷平板长度构成的两级堆叠Blumlein脉冲形成线的原型装置。该脉冲形成线直流充电至5 kV，在8 Ω负载上测得输出电压脉冲为10 kV、22 ns。仿真与实验结果吻合良好，表明模块化设计是合理的。
