电流脉冲

The principle of constant power drive is: PD converts the change of output light power of laser diode into the change of diode current, and the change of current is feed back to voltage-current converser which adjusts output current of driver to compensate the laser diode.

这样，当激光器的输出光功率衰减时，驱动器相应的增大输出电流；当激光器的输出光功率增强时，驱动器就相应减小输出电流。对许多激光器应用来说，最希望脉冲输出，因为脉冲输出只有极小的结发热。

The results show that the current pulse voltage and frequency on the solidification structure optimization have a best value.

研究了不同参数的脉冲电流对Q235钢凝固组织的影响，结果表明：脉冲电流的电压和频率对凝固组织的优化有一最佳值。

In this paper,on-line detection for composite insulator based on pulse current method is studied.

利用脉冲电流法检测系统对合成绝缘子在不同电压下的脉冲电流特性进行了研究。

Study the effect of pulse current with different parameters on Q235 steel.

研究了不同参数的脉冲电流对Q235钢凝固组织的影响，结果表明：脉冲电流的电压和频率对凝固组织的优化有一最佳值。

The voltage ratio of the capacitive voltage divider was determined to be 418.5 with an accuracy of 4.6% and the resistance of the stainless steel film 1.43 mΩ with an accuracy of 5.1%.

1引言在脉冲功率技术中，脉冲高电压和大电流是十分重要的电气参数，要求测量得到的电压和电流波形真实准确。

The possibility for preparing nanocrystalline materials by jet-electrodeposition technique is also analyzed. Corresponding the research in the article, a set of unsubmerged single circular jets equipment was designed. In chapter 2, jet-electrodeposition was carried out both under direct current condition and pulse current condition. A series of samples for nanocrystalline nickel coating were prepared under different deposition parameters.

在第二章中，采用喷射电沉积技术分别使用直流和脉冲两种波形的电流进行电沉积，改变电沉积工艺参数制备了一系列的纳米晶镍镀层样品，使用X射线衍射、扫描电镜、透射电镜、维氏硬度计等仪器对镀层微观结构和性能进行了分析和表征，主要考察了在直流喷射电沉积和脉冲喷射电沉积方式下，沉积参数如电流密度、电镀液喷射速度等对镀层微观结构和显微硬度的影响。

In room temperature, the pulse needs thousands of voltages and more then ten thousand amperages, which needs prodigious and costly electric current pulse generator.

但在室温条件下使钢的基体组织发生变化，需要数千伏以上电压、上万安培的电流才能达到，这需要庞大的脉冲发生器机组和很高的成本造价，而在800～900℃的高温条件下对合金试样加以千安级以下脉冲电流同样可以达到目的。

The samples with a diameter of 14mm have a nonlinear coefficient of about 50, a breakdown electric filed of about 350V/mm and a leakage current of less than 5μA, and the withstanding surge peak current of 8/20μs waveshape is about 2kA, which meet practical requirement.

获得电性能接近实用化的SnO2压敏陶瓷样品，其压敏电压V1mA约为350V/mm，非线性系数α达到50，漏电流小于5μA，并且在8/20μs脉冲电流冲击试验中，直径14mm的样品能够经受2kA的脉冲峰值电流。

For non-intense beams,particle trajectory can be obtained by multiplying linear transport matrices. For nonlinear transport of intense beams,the influence of space-charge effect on beam transport needs to be taken into account,and self-consistent solution should be derived because of the interaction between charged particle distribution and space charge field. In the program,components and currents are divided into equal intervals,respectively,and each interval is treated as a uniform solenoid field.

程序在计算非强流脉冲束流的线性传输时，粒子的轨迹通过矩阵的直接相乘计算得出；程序在计算强流脉冲束流的非线性传输时，需要考虑束流中的空间电荷效应对束流传输的影响，在束流运动过程中，空间电荷场也在不断地变化，而且粒子运动的轨迹与空间电荷势又是相互依赖的，因此需要求得一个自洽的解，先把元件分成若干均等的区间，把电流分成若干等份，后采用束流电流迭代与元件区间迭代的计算方法。

Of electric current, voltage and resistor what can make up programmed control to make electric current, voltage and power is accurate read time use within transient state simulative generator of buy pulse form is successive as laden as pulse job has the synchronism outside complete protective function to spark input higher power can shunt-wound job can make, electronic load is all Agilent Dc that the solution of stand-alone of ideal equipment Agilent of power cell and batteries capacity test offers your place to need all sorts of dynamic and laden application undertook optimizing.

电流、电压及电阻的可编程节制电流、电压及功率的切确读回用于瞬态模拟的内置脉冲形发生器陆续与脉冲负载工作存在完整的保护性能外同步触发输入较高功率可并联工作可使到高达240V的负载可利用单输入或多输入主机箱 3年保修期 Agilent直流电子负载是测试与评估直流电源，功率元件和电池容量测试的理想行动措施 Agilent单机解决方案供给您所需的一切 Agilent dc电子负载为各类动静负载应用进行了优化。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。