共查询到16条相似文献,搜索用时 109 毫秒
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以间接馈电的两级螺旋型爆磁压缩发生器为初始功率源,基于等效电路模型,编制了一个螺旋型爆磁压缩脉冲功率源计算程序BCYSSYS。利用该程序对04型爆磁压缩发生器驱动电感负载进行了计算,并将计算结果与实验结果进行比较,两者基本吻合;对该发生器驱动电容负载进行了计算。同时利用铜金属丝电爆炸过程中电阻率与比作用量的关系数据表,对爆磁压缩发生器驱动含电爆炸丝断路开关的电感储能脉冲功率调节系统进行了数值计算。 相似文献
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爆磁压缩发生器常用来驱动脉冲调制器,在二极管上产生高功率短脉冲。进行了两个100 kA动态级联型爆磁压缩发生器延时驱动一台由脉冲变压器和脉冲形成线构成的脉冲调制器的实验。两个爆磁压缩发生器由延时起爆器延时20 ms起爆并用熔断丝进行相互电隔离,在负载二极管上产生了间隔约20 ms、功率大于20 GW的两个脉冲。实验表明:用更多的爆磁压缩发生器驱动单台脉冲功率调制器产生多脉冲的方案是可行的,该方法可用于大功率重频加速器中脉冲功率器件的电恢复性能测试。 相似文献
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Shimomura N. Akiyama H. Maeda S. 《IEEE transactions on plasma science. IEEE Nuclear and Plasma Sciences Society》1991,19(6):1220-1227
The pulsed power generator, named ASO-I, is extremely compact and light in comparison with a conventional pulsed power generator, which consists of a Marx bank and a water pulse forming line. The ASO-I has a two-staged opening switch, consisting of fuses in water and a plasma erosion opening switch, and can be operated hundreds of times a day at an output power of 230 kV and 35 kA. The parallel fuses are effective for power multiplication, and small differences in length of the parallel fuses do not influence the output power. The risetime of current through the short-circuit load decreases with the increase of the gap length of the spark gap, which is placed between the fuses and the load. The plasma erosion opening switch can be operated as a second opening switch, and the risetime of the current through the short-circuit load decreases from 250 to 10 ns. The maximum resistance of the plasma erosion opening switch is 3.5 Ω with an open-circuit load 相似文献
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We report on the high-energy laser operation of an Ho:YAG oscillator resonantly pumped by a GaSb-based laser diode stack at 1.9 μm. The output energy was extracted from a compact plano-concave acousto-optically Q-switched resonator optimized for low repetition rates. Operating at 100 Hz, pulse energies exceeding 30 mJ at a wavelength of 2.09 μm were obtained. The corresponding pulse duration at the highest pump power was 100 ns, leading to a maximum peak power above 300 kW. Different pulse repetition rates and output coupling transmissions of the Ho:YAG resonator were studied. In addition, intracavity laser-induced damage threshold measurements are discussed. 相似文献
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A.A. Ionin 《Optics Communications》2009,282(4):629-634
A compact sealed-off cryogenically cooled radio frequency (RF) discharge slab CO laser, operating in both first-overtone (FO) and fundamental band (FB), was launched. Repetitively pulsed and CW modes of RF discharge excitation were studied. Average FB output power was up to 12 W, with laser efficiency 14%. The multiline FB laser spectrum was observed within the wavelength range ∼5.1-5.4 μm. An optical scheme “frequency selective master oscillator - laser amplifier” was applied for getting FB tuning. Single line FB lasing with average power up to several tens of mW was observed on ∼100 FB vibrational-rotational transitions of CO molecule within the spectral range ∼5.0-6.5 μm. Multiline FO lasing was observed on ∼80 spectral lines within the spectral range ∼2.5-4.0 μm, with maximum single line average output power 12 mW. Total output power of the slab FO CO laser came up to 0.3 W, with maximum laser efficiency 0.5%. Results of parametric studies of the FB and FO slab CO laser including complicated time behavior for laser pulses on different FO vibrational-rotational transitions are discussed. 相似文献
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基于金属外壳1.0 F/40 nH/100 kV的电容器和100 kV/200 kA气体开关,提出了电流20 MA、前沿300 ns Marx型直接驱动Z箍缩负载的脉冲功率源概念设想,共40路并联,每路为6个Marx并联驱动一条水介质传输线, Marx为18级串联。分析了关键单元(电容器和气体开关)的技术可行性,建立了PSpice电路模型,模拟计算了Marx建立时间分散性、水介质传输线阻抗对负载电流的影响,模拟结果表明:Marx建立时间分散性从10 ns增加到60 ns时,负载电流前沿从平均282 ns增加到287 ns,峰值从21.0 MA降低到19.8 MA,脉宽几乎不变;Marx建立时间分散性对负载电流的影响随着并联数目增加变小;采用4.2 等阻抗传输线,负载电流最大。 相似文献
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小型超宽谱高功率微波辐射系统由Tesla型100 kV级ns脉冲源、Peaking-Chopping型亚纳秒气体开关及TEM喇叭天线构成。系统重复运行频率100 Hz,辐射因子rEp值75 kV,主轴辐射场中心频率520 MHz,-3 dB频谱范围230~810 MHz。系统集成于一便携箱内,体积为80 cm50 cm26 cm,质量约45 kg。该系统结构紧凑,能够快速展开和撤收,可方便用于超宽谱高功率微波应用技术研究。 相似文献