Chapter Three explains how the UPS with constant current supply the power, as the electric power is not available.
第三章重点讲的是恒流ups在市电出现故障时如何实现恒流不间断供电的。
The surface potential build-up with constant current corona charging for polypropylene electrets was investigated.
本文讨论了聚丙烯驻极体恒流电晕充电期间电荷的建立。
Two charge ways are commonly taken in charge circuit, charge with constant voltage and charge with constant current.
一般的充电回路采用的充电方式有两种：恒压充电和恒流充电。
A prototype with constant current charge and discharge functions is developed. Experimental data and waveform are given.
研制成功可用于恒流充电和放电的充电器样机，文中给出了实验数据和波形。
Apply high voltage pilot arc and high frequency stable arc with constant current properties, prevent influence from unstable voltage of power grid.
采用高压维弧和弱高频稳弧，同时具有恒流特性，不受电网电压波动的影响。
A controlling model of inverter spot-welding process and a fuzzy neural network configuration about inverter spot-welding with constant current control were built in this paper.
推导了逆变点焊过程控制模型，并构建了逆变点焊模糊神经网络恒电流控制系统结构。
A three phase half controlled bridge circuit with constant current and high efficiency is designed in the charged loop of the welding power supply. So a limiting current resistance is canceled.
在焊接电源的充电回路中设计了三相桥式半控、恒流高效充电回路，取消了限流电阻；
The authors of the current study turned their attention to long-term sleep loss, and examined whether the effects of such constant sleep deprivation could be erased with an extended resting period.
现在的研究人员将他们的注意力放在了长期睡眠缺失上，考察了是否持续的休息周期的影响能够弥补此种连续的睡眠缺失的损害。
A zipper is a way of representing a data structure with a local context, such that navigation (iteration) and modification from the current context are, for the most part, constant-time.
zippers是使用本地上下文表示数据结构的一种方法，这使当前上下文中的导航(迭代)和修改在很大程度上具有常量时间的特点。
To make the measurement, a constant voltage is applied for a predefined period, usually 60 seconds, and the resulting current is measured with a picoammeter or electrometer.
为了进行测量，在预定的时间(通常为60秒钟)内，给样品施加恒定的电压。然后，用皮安计或静电计测量产生的电流。
The control system adopts current PWM control mode, and high quality energy feedback with constant power could be accomplished.
控制系统采用的是电流型PWM控制方式，能够实现高品质的恒功率能量回馈。
The idea behind the constant current load is that with a constant current load, the valve is almost perfectly linear (near ZERO distortion).
恒流源负载的思路取自胆管在恒流源负载的条件下可以接近完美的线性（接近零失真）。
Unique Constant flow Constant Pressure Technology with accurate control of the voltage and current promoting stable performance.
独创恒流恒压充电技术，使电压电流得到精确控制，性能更稳定。
With the help of the sweeping velocity of magnetizing current controlled by a flux feedback loop a nearly constant induced voltage is produced.
借助磁通反馈环节控制磁化电流扫描速度，使得产生的感应电压接近常数。
This paper proposes an energy saving control mode for current source inverter(CSI) induction motor drive system with the motor driving a constant power load.
本文提出了电流型逆变器-感应电动机变频调速系统中电机驱动恒功率负载时，系统以最大效率运行的节能控制方式。
Based on the relationship between the diffusion current and voltage of PN junction, the Boltzmann's constant is measured with high accuracy.
运用半导体的PN结扩散电流与电压关系特性，精确地测量了玻尔兹曼常数。
Dielectric constant polarization coercive voltage and leakage current have relations with the thickness of thin films because of the interface layer.
界面层的存在使介电系数、自发极化、矫顽电压、漏电流都与薄膜的厚度有关。
With the experimental results, the constant-current characteristic which could be applied in capacitor charging was well shown.
实验结果表明，该电路具有良好的恒流特性，适于高压电容充电。
This paper deals with the development of the microcomputer constant current control system of the spot welding inverter.
本文研制逆变点焊电源的微机恒流控制系统。
We designed a large current AC constant current source of low frequency, and an electronic preamplifier with high sensitivity for the use of the instrument.
仪器中设计了大电流低频交流恒流源，高灵敏度前置放大器，并用单片机软件代替了大量电子线路的功能。
Using the incremental fuzzy control with self-adapting parameter, the phase current of the switch reluctance motor was optimized, and the constant torque control is implemented.
采用一种基于参数自调整的增量式模糊控制器，对电机相电流进行优化，从而实现恒转矩输出。
The lump-constant equivalent model is built to represent the relation of any single phase voltage and mold current with this characteristic.
利用该特征建立了反应任一单相电压与模电流之间关系的集中参数等效模型。
The charging technique with L-C constant-current converter is adopted, and the repeated charging and discharging process of the device is controlled by voltage feedback.
研制了一种检测氧化锌避雷器阀片的重复频率充放电装置，采用L C恒流充电技术，通过电压反馈法控制充放电运行过程。
Studies on this model put up the constant current block equalization algorithm and also the variable current equalization algorithm with key parameters.
基于这一模型的研究给出了恒流分块轮转算法和变流均衡算法及其关键控制参数。
This numerical control constant current source with the core of single chip microcomputer can provide exact control for the output current, the control could attain milliampere level.
这种以单片机为核心的数控恒流源实现了对输出电流的精确控制，控制精度可达毫安级。
Two surface heat-treatment processes, liquid nitriding and sulfurizing, are used to compare with the current production process of liquid carburizing, with other variables remaining constant.
两种表面热处理液体渗氮及渗硫工艺与现行生产上原采用之液体渗炭淬火处理工艺，在尽量保持其他可变数不变的情状下加以比较。
The mainly current oscillation changes from the irregular state to the regular state then turning into another irregular with the increase of the constant potential.
恒电位下，随着电位升高电流振荡总体趋势从不规则到规则再到不规则。
The maximal detection range increases with the reducing duty ratio of the drive current when the transmitted average power is constant.
在平均功率不变的情况下，可以通过减小激励电流的占空比来增加最大探测距离。
Temperature distribution and its amplitude of the sensor under constant current excitation are simulated with finite element method.
用有限元方法模拟了恒流加热方式下气压对传感器温度分布和温度大小的影响。
Temperature distribution and its amplitude of the sensor under constant current excitation are simulated with finite element method.
用有限元方法模拟了恒流加热方式下气压对传感器温度分布和温度大小的影响。
应用推荐