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电流上升时间
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  current rise time
     Some typical results of argon-puff Z-pinch during implosion and pinch phase, including the “zipper” effect, necking phenomenon, sausage instability,temperature changes and the effect of load current rise time, are given and analyzed as examples, and some relevant conclusions are drawn.
     观测到了内爆中的“拉链”效应、“颈缩”效应、腊肠不稳定性等现象,获得了等离子体温度变化和内爆速度变化等典型结果,并分析了电流上升时间等因素对等离子体内爆过程的影响,给出了相关结论.
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     The Multi Gap Multi Channel Gas Spark Switch has the virtue in low inductance and stabilization. This paper introduced a Multi Gap Multi Channel Gas Spark Switch used to fast LTD module with the current rise time of 100 ns, the current peak of 100 kA.
     为了研究用于电流上升时间约100ns、电流峰值约100kA的LTD模块设计了一种标称电压为200kV(±100kV)多极多通道气体开关。
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  “电流上升时间”译为未确定词的双语例句
     when charged to ±50 kV, the stage provided a current of 41.4 kA rising in 36.8 ns to 0.85 Ω load and a current of 24.5 kA rising in 33.8 ns to 2.65Ω load.
     充电±50kV时,对0.85Ω电阻负载放电电流为41.4kA,电流上升时间36.8ns,对2.65Ω电阻负载放电电流为24.5kA,电流上升时间为33.8ns。
短句来源
     when charged to ±40 kV, the stage provided a current of 30.4 kA rising in 36.8 ns to 0.85 Ω load and a current of 17.9 kA rising in 33.6 ns to 2.65Ω load;
     充电±40kV时,对0.85Ω电阻负载放电电流为30.4kA,电流上升时间36.8ns,对2.65Ω电阻负载放电电流为17.9kA,电流上升时间为336ns。
短句来源
     The main specifications are: when storing energy is 500J,the first max discharge current is 19.3kA and the rise time is 9μs.
     当储能为 5 0 0 J时 ,测得第一放电电流峰值为 19.3k A,电流上升时间为 9μs。
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     The weight of the generator is about 7 kg, the output current reaches 228.1 kA in the inductance load of 0.5 μH and the risetime of the current is about 37.7μs with a current amplification ratio of 22 3 and energy amplification ratio of 12 5.
     该装置重约 7kg ,初始能量 1kJ ,在 0 .5 μH的负载上产生了 2 2 8 1kA的电流 ,电流放大倍数为 2 2 3倍 ,能量放大倍数为 12 5倍 ,电流上升时间为 37 7μs。
短句来源
     The main specifications are:stored energy (2~5)kJ per shot,maximum discharge current 98kA and risetime of 176μs when storing energy 35kJ.
     当储能为3.5kJ时,测得放电电流峰值为9.8kA,电流上升时间为17.6μs。
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  相似匹配句对
     Interaction Law of Electric Current
     电流相互作用
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     The alkali formation current efficiency were tested.
     电流效率;
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     This facility generated a peak current of about 520 kA with 80 ns rise time.
     “阳”加速器产生的电流峰值约520 kA,上升时间80 ns。
短句来源
     Depending on the initial load inductance and the implosion time, PBFA Z has attained peak currents of 16-20 MA with a rise time of 105 ns.
     在一定的负载条件下,得到了上升时间为105 ns,峰值为20 MA的电流脉冲。
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  current rise time
An energy source designed on the basis of a BMΓ-160 magnetocumulative generator with transformer output, which enables one to form high-power (>amp;gt;100 GW) pulses with a current rise time of ~1 μs across a 10-Ω load is described.
      
Results of the development and study of a 14-stage air high-voltage pulse generator with an output voltage of up to 250 kV, a current rise time of 10 ns, and blow capacitance of 400 pF are presented.
      
As a result, the load-current rise-time is 20 times less than the charging-current rise time and the amplitude of the current increases.
      
At such a voltage, the POS current amplitude is 320 kA and the current rise time is 2 μs.
      
The energy capacity of this generator is ~1 kJ, the total operating time is 25 μs, and the characteristic current rise time is ~2 μs.
      
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Several aspects of the dynamic characteristics of ZX5-400 silicon controlled are welding power supply are analyzed in detail in this paper. The results show that because of the sharp current rise during the short time transfer from load to short-circuit condition, the breakdown of the small metal bridge formed by over 65% droplets in the short circuit transition takes place in the decreasing section of current and even also in the stable section of short-circuit current when low-hydrogen electrodes are used...

Several aspects of the dynamic characteristics of ZX5-400 silicon controlled are welding power supply are analyzed in detail in this paper. The results show that because of the sharp current rise during the short time transfer from load to short-circuit condition, the breakdown of the small metal bridge formed by over 65% droplets in the short circuit transition takes place in the decreasing section of current and even also in the stable section of short-circuit current when low-hydrogen electrodes are used in welding. This is very beneficial to diminishing spatter. Meanwhile, a new means for examining the dynamic characteristics of this kind of welding machine is put forward. The parameter ifd/If(t_0)is proved to be good for showing precisely the relation between dynamic characteristics of power supply and spatter.

本文详细地分析了ZX5-400型可控硅手弧焊电源动特性的几个特点。认为这类焊机,由于从负载至短路过渡过程的电流上升时间短,因而用低氢型焊条焊接时,65%以上的熔滴,在短路过渡时所形成的小桥金属,破断发生在负载至短路动特性电流波形的下降段,甚至在隐态短路电流段。这样,对减小飞溅十分有利。同时提出考核这类焊机动特性的新方法。科学地论证i_(fd)/I_f(t_o)这(?)参数能准确反映电源动特性与飞溅的关系,对修正直流弧焊电源动特性标准有很大参考价值。

A complete set of pulsed critical current measurement equipment has been developed. The amplitude of the pulsed current can be varied in the range of 0-500A. The rise time of pulse is ranged between 0.2 ms and 10ms and the criterion of pulsed critical current can be a few microvolts. The comparison of d.c. and pulse method, both of which are used to determine the critical current of superconductive samples indicates that the same results can be obtained for samples with low contact heating. The critical current...

A complete set of pulsed critical current measurement equipment has been developed. The amplitude of the pulsed current can be varied in the range of 0-500A. The rise time of pulse is ranged between 0.2 ms and 10ms and the criterion of pulsed critical current can be a few microvolts. The comparison of d.c. and pulse method, both of which are used to determine the critical current of superconductive samples indicates that the same results can be obtained for samples with low contact heating. The critical current density, which is not less than 7×10~4A/cm~2(77K, 1T) and 3.5×10~4A/cm~2(77K, 4T), in YBCO bulk samples has been measured by this equipment.

建立了一套脉冲临界电流测量装置,脉冲电流大小在0—500 A之间可调,脉冲电流上升时间在0.2—10 ms之间可调,失超电压判据可以达到微伏量级。对于电接点发热不明显的样品,用直流法和脉冲法测定的临界电流可以获得相同的结果。用本装置,在YBCO块样品上测到了高的临界电流密度数据:77K,1T下J_c>7×10~4A/cm~2,4T下J_c>3.5×10~4A/cm~2。

sing a small pulse of toroidal vortex electric field(4.4V / m,0.45ms),plasmacurrent is successfully ramped up from the plateau(55kA) to the second plateau(60kA)with a ramp rate dl_p/dt>12MA/s on a time scale much fast than the clas-sical skin time in the HT-6M Tokamak.The phenomena of improved confinementis observed in the present experiment.Particle confinement time is enhanced 2.1times and energy confinement time, meanwhile,is enhanced 1.6 tines after rampingcurrent up.

利用一个小的环向涡旋脉冲电场(4.4V/m,0.45ms)成功地将HT-6M托卡马克等离子体电流从第一平顶(55kA)提升到60kA的第二平顶。其电流上升率大于12MA/s,电流上升时间远小于经典趋肤时间,实验中观察到了标志等离子体约束改善的明显物理现象。等离子体电流提升后,粒子约束时间提高了2.1倍,能量约束时间提高了1.6倍。

 
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