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CPU 8031 is used as the central controller and VE4137A quick hydrogen thyratron with high voltage,large current and low jitter is used as the high voltage pulse generator,and MOSFET is used as the driver.

设计高压脉冲形成级是本机的重点，关键是选择能满足本机各项技术指标要求的高电压、大电流、快速开关管。

The intelligence motor soft starters partial hardware electric circuit has designed mainly includes the electric current, the voltage examination module, the crystal thyratron triggers and the pulse width enlargement electric circuit module, the numeral keyboard entry and the liquid crystal display output module.

设计了智能型电机软起动器的部分硬件电路，主要包括有电流、电压检测模块、晶闸管的触发及脉宽放大电路模块、数字键盘输入及液晶显示输出模块。

The composition voltage, the electric current double closed loop voltage-stabilized source, used the integrated phase shifting crystal thyratron module to do for the electrical energy transformation component, in detail has calculated the rectification main circuit main component parameter; In the pulse-duration modulation part, used the special-purpose integrated circuit to realize the frequency modulation to adjust the pressure, did take IGBT as the power transformation component, realized the output voltage frequency modulation to adjust the pressure, and has calculated the related parameter.

在调压稳压电压源设计中采用二阶工程设计法设计了电压和电流调节器，组成电压、电流双闭环稳压电源，采用集成移相晶闸管模块做为电能变换器件，详细计算了整流主电路主要器件的参数；在脉宽调制部分，采用专用集成电路实现了调频调压，以 IGBT 做为功率变换器件，实现了输出电压的调频调压，并计算了有关参数。

According to the current situation that a great deal of mechanical Roots flowmeters are widely used in natural gas flow measurement, an intelligent flow totalizer based on zero power pulse sensor was developed.

针对目前国内许多测量天然气的场合还在大量应用机械式罗茨流量计的现状，本文研制了一种基于零功耗脉冲传感器的智能流量积算仪。

An effective method for improvement transient response in pulse-width modulation current source converter is studied.

给出了单相和三相变频器的实验结果，与采用其他方法的变频器相比，该方法的变频器电源电流的暂态响应得到了有效改善。

The results showed that: the charging method had significant influence on deep cycling VRLA batteries;the constant-voltage charging method tended to long-term undercharge the batteries;the failure cause of constant-current charging batteries was that the active material would be soften and shed; the VRLA battery's serveice life would be improved by using pulse-charging method.

结果表明：1、充电制度对深循环VRLA电池的寿命有着重要的影响；2、恒压充电方法容易导致电池长期充电不足，从而发生硫酸盐化；3、恒流充电的电池失效原因是正极板铅膏发生软化、脱落；4、脉冲充电的方法可使深循环VRLA电池寿命提高。

The error includes two sides, one is the calculation error about Wheatstone bridge circuit, and another is the effect of the sharp pulse producing when test current is loaded on the sample. In order to eliminate or decrease error, some measures are employed in the test program.

2进行了无损性验证试验，结果说明经过瞬态脉冲试验的产品的感度性能与未经过瞬态脉冲试验的产品的感度性能相比，没有显著性差异。

Based on this model, interaction between the parallel grid-connected inverters is analyzed and the influence on circulating current when it is adopted zero vector with space vector pulse width modulation is also analysed.

在这模型的基础上，分析并网逆变器并联运行时的相互影响；分析了并网逆变器采用间矢量脉宽调制算法时零矢量对环流的影响。

The zinc-iron alloy electroplating technology in zincate solution by pulse current was investigated.

介绍了在锌酸盐溶液中脉冲电镀锌-铁合金工艺。

Only in the millisecond range, the current efficiency decreases with shortening pulse period due to the disproportionation of cuprous ions and the dissolution of copper adatom.

在毫秒范围时会因为亚铜离子的不对称反应以及铜吸附原子的溶解而使得电流效率随著缩短脉冲周期而下降。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。