pulsed current

the pulsed current tig welding method is widely used in the industrial production. but our knowledge to the physical properties of the pulsed current tig arc is still very limited.

脉冲TIG焊接工艺在生产中应用广泛，但对其电弧物理特性的认识仍很有限。

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results of the study show that by means of the pulsed current the machining errors can be greatly reduced, the surface finish and the reliability of the machining process can be improved.

试验研究结果证明，采用脉冲电流可以减少加工误差，提高表面光度和加工过程稳定性。

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it is also observed that the electric properties of the devices degrade under large pulsed current.

对大脉冲电流下LED的特性的退化作了研究。

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electrochemical performance of high silicon-iron anodes exerted by square wave pulsed current

方波脉冲电流作用下高硅铸铁阳极的电化学性能

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the engineer measured the pulsed emission current.

工程师测量了脉冲发射电流。

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during hot-pressing, the activation energy is less than that during pressureless sintering because of the promoting of the applied stress on the diffusion. during sps processing, the surfaces of particles are activated by pulsed current, so the activation energy is significantly decreased.

在SPS烧结过程中，由于外加的脉冲电流能使晶粒表面大大活化，所以活化能与无压烧结相比大幅度下降。

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dr. lee designed a new pulsed current modulator.

李博士设计了一台新的脉冲电流调制器。

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The square triple-pulses generator has an output voltage up to 250 kV, a pulsed current of 10 kA, pulse power of 2.5 GW, a repetition rate of 1 MHz, a pulse risetime of 40 ns, and a pulse flat top of 50 ns.

方波三脉冲源输出指标达到了电压250kV，脉冲电流10kA，峰值功率2.5GW，重复率1MHz，脉冲上升时间约40ns，脉冲平顶宽度50ns。

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So pulsed eddy current method is introduced to inspect metal surface cracks.

介绍了应用脉冲涡流检测技术于检测金属表面裂纹.

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The Research on Room Temperature Solenoid Wiggler and Large Pulsed Current Source

室温脉冲螺旋Wiggler磁体和大电流脉冲电源的研究

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a theory regarding the effect of the partially melted region on the grain size in the weld fusion zone and the possibility of control over the grain size and shape by the pulsed current mode is postulated.

关于半熔化区对焊缝熔化区晶粒尺寸的影响以及通过脉冲电流控制晶粒尺寸和形状的可能性的理论做了假定推理。

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the engineer measured the pulsed drain current of the transistor.

工程师测量了晶体管的脉冲漏极电流。

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experimental results show that the solidification structure can be remarkably refined by the application of the higher density pulsed current.

结果表明，高密度脉冲电流可以显著细化其凝固组织。

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energy and density of electrons in a hollow cathode discharge supplied with pulsed current

脉冲供电的空心阴极放电中电子的能量和密度

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the effect of pulsed current on metal deposition is analyzed.

分析了脉冲电流对金属沉积过程的影响。

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the engineer explained pulsed current plasma arc welding to the students.

工程师向学生们讲解了脉冲电流等离子弧焊。

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when there are several pccp systems in one area, their pulsed current had better have the same frequency and duty cycle, and the design requirement can be obtained by adjusting the amplitude of their pulsed current.

在实际应用中，当一个区域内存在多个脉冲阴极保护体系时，这些体系最好采用同频同占空比的脉冲电流，通过调整各自的电流幅值来达到设计要求。

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dr. lee uses a pulsed current modulator in the lab.

李博士在实验室里使用一台脉冲电流调制器。

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under pulsed current, cobalt-nickel alloy deposits obtained are compact and uniform which appear to be cystiform in growth.

脉冲条件下所得镀层致密、均匀，呈胞状生长。

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design of a novel pulsed eddy current testing probe based on 3d magnetic field measurement

基于三维磁场测量的脉冲涡流检测探头的设计

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the effect of pulsed current and pulsed magnetic field on the solidification structures of ly12 aluminum alloy was studied.

在LY12铝合金凝固的过程中施加脉冲电流或脉冲磁场，研究脉冲电流或脉冲磁场对这种合金凝固组织的影响。

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a three-dimensional numerical analysis model of fluid flow and heat transfer in pulsed current tig weld pool is developed.

对运动电弧作用下脉冲TIG焊接熔池流场与热场动态变化过程建立了三维数学模型。

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fast calculation of the impulse response of a pulsed eddy current test system

脉冲涡流检测中系统冲激响应的快速计算

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the engineer measured the pulsed source current.

工程师测量了脉冲源电流。

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the results of numerical simulation demonstrate the transient behavior of weld pool and the periodic variation of fluid flow and heat transfer with the periodic variation of welding current in stationary pulsed current tig weld pool.

计算结果展示了脉冲TIG焊接过程中，随着焊接电流的周期性变化，熔池流场与热场的周期性变化规律以及熔池形成的动态发展过程。

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the engineer measured the pulsed forward current.

工程师测量了脉冲正向电流。

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an advanced technique, pulsed eddy current detection, was introduced for corrosion detection.

介绍了一种新型的腐蚀检测技术，即脉冲涡流检测技术。

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effect of pulse frequency on pulsed electric current sintering process of iron-based powders

脉冲频率对铁基粉末脉冲电流烧结过程的影响

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effect of pulsed current magnetic fields on neural stem cell proliferation in hippocampus of stressed rat

脉冲磁场对应激大鼠海马神经干细胞增殖的影响

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a study on the hard anodizing of aluminium alloy with pulsed current

铝合金脉冲硬质阳极氧化的研究

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