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|  | | 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。 | |
The reaction of molten Al-2.5 pct Li alloy or pure aluminum with water was studied by the exploding wire technique incorporating a crowbar switch current interruptor and an inductive energy store.
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During this process, the stiff hamulus (the pollinia stalk protruding prominently towards the lip) acted as a crowbar when it was brushed downwards by the toppled fly and lifted the pollinia out of the anther.
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Expansion of spark channels in air and possibilities of plasma crowbar in high pulsed current and magnetic field technique
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The second version employs the crowbar regime and makes it possible to form unipolar current pulses with a 190-kA amplitude and a 500-μs duration in the load circuit.
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Without the crowbar, an external overvoltage fault could act through parasitic diodes in Q1 and the interface IC to lift the main supply voltage.
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| | The performance aad structure of a series switch/regulator used for 7cm, duo-PIGatron ion source are described briefly. Pulse modulation tube TM-2F and pulse hydrogen thyratron ZQMl-600/33 are used as the switch/regulator and the crowbar respectively. The series switch/regulator is capable of delivering 25kV, 10A electrical pulses of 50ms width from the capacitor bank for the ion source according to a given programme. This switch/regulator has switching-off time of less than 10μs and has been operated... | | 本文扼要叙述用于7cm电极直径双潘宁离子源上的一台组合串联开关/调整器的性能及结构。它主要由开关/调整管TM-2F和短路开关ZQM1-600/33等器件组成。可按预定程序从200μF的贮能电容器组中向离子源提供25kV,10A,50ms的输出。开关保护公断时间小于10μs。已成功地在装置上运行了3年。 | | 文摘来源 | | A P.S. (Power Supply) for multi-filament neutral beam source with an extraction area of 7 x35cm2 is described briefly. It includes Plasma generator P. S. , accelerator P. S. , suppressor P S. and control system. SCR thyristprs of the switch modulator are applied to an arc P. S. which is capable of delivering 1 to 5 kA pulses current at 20 to 150 V and pulse length of 50 ms from a twelve pulse rectifier of the P. S. system to supply energy to the arc chamber load with the duty cycle of 0.1%. Both of switchin... | | 本文对7×35cm~2多灯丝中性源的供电系统作了简要介绍,包括等离子体发生器、加速极和抑制极的电源和控制系统等。弧电源采用SCR晶闸管调制器,在0.1%的工作比下,从12脉波整流电源向弧室负载传递1~5kA,20~150V,50ms宽的直流脉冲。接通和关断的时间均小于1ms。加速极电源的重要特点是取消了并联快速短路开关。为增加可靠性,使用两只FU-104Z真空四极管串联,每一只均能承受最高直流静态电压。为改善整个系统的遮断和调整的快速响应,将调整和开关两种功能分开,互不影响。电源系统由一台DBJ-Z80微型计算机控制,在强电磁场干扰下能可靠工作。 | | 文摘来源 | | A P.S. (Power Supply) for multi-filament neutral beam source with an extraction area of 7 X 35cm2 is described briefly. It includes plasma generator P.S., accelerator P.S. ,suppressor P.S.and control system. SCR thyristors of the switch modulator are applied to an arc P.S.which is capable of delivering I to 5kA pulses current at 20 to 150V and pulse length of 50ms from a twelve pulse rectifier of the P. S.system to supply energy to the arc chamber load with the duty cycle of 0.1%. Both of switching-on and s... | | 本文对7×35cm~2多灯丝中性源的供电系统作了简要介绍,包括等离子体发生器。加速极 和抑制极的电源和控制系统等。弧电源采用SCR晶闸管调制器,在0.1%的工作比下,从12脉波整流电源向弧室负载传递1~5kA,20~150V,50ms宽的直流脉冲。接通和关断的时间均小于1ms。加速极电源的重要特点是取消了并联快速短路开关。为增加可靠性,使用两只FU-104Z真空四极管串联,每一只均能承受最高直流静态电压。为改善整个系统的遮断和调整的快速响应,将调整和开关两种功能分开,互不影响。电流系统由一台DBJ-Z80微型计算机控制,在强电磁场干扰下能可靠工作。 | | 文摘来源 | |   | | << 更多相关文摘 |
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