PWM mode was analyzed, and a kind of variable-resistance timing Winch being of simple structure and large power supply was put forward by using wire-wound motor and series resistance timing principle.
分析了PWM的调整方式，利用绕线式电机和串电阻调速的原理，提出了一种结构简单、功率强的变阻调速绞车。
The stator resistance of asynchronism electromotor in direct torque control system, is a variable value which influence the low speed performance of the system.
在直接转矩控制系统中，异步电动机定子电阻为一变化值，从而影响了控制系统的低速性能。
The diode ACTS like a variable resistance, low when the charging current to the capacitor is high, then increasing in value as the current decreases with time.
该二极管象一个可变的电阻。当电容器的充电电流很大时，其阻值很低；而电流随时间变小时，其阻值增大。
The output power mechanism of a separately excited DC motor can be equivalent to a variable resistance, which is parallel with the armature winding of the motor.
若将他励直流电动机输出功率的机理等效为一个与电动机电枢绕组并联的可变电阻，可以得到他励直流电动机可变电阻型等效电路图。
The paper introduces the working principle, constitution and application of a new type liquid variable resistance starter of high power motor used in coal mine.
介绍了一种新型矿山大功率电机液体变阻启动器的工作原理、构成及应用情况。
In those days the only reliable vacuum tube was the Western Electric repeater triode, and if one needed a variable resistance he wound a lot of wire on a wooden spool.
在那个时候唯一可靠的真空管就是WesternElectric中继器三极管，而如果需要变阻器时，就用金属丝缠在木卷轴上自己做一个。
Thus, the calculation and the measurement of the cup-rotor resistance of a test CTD variable speed motor are proceeded with a satisfactory result.
最后通过试验电机杯转子电阻的测试和计算，得到了令人满意的结果。
The effect of a single variable on the composite volume resistance by maintaining other effect factors constant is analyzed respectively in the thesis.
本论文采用控制单一变量测定电阻率的方法对影响复合材料导电性的因素进行了研究。
The analysis of the resistance-temperature relation using the variable range hoping (VRH) model shows that the intrinsic mechanism of the laser irradiation is the delocalization of the electrons.
利用变程跳跃模型对电阻温度曲线进行分析讨论，表明激光作用的内在机制是激光辐照诱导电子退局域化。
Unique chemistry of Cyberpoxy adhesives improves performance with variable set speeds, greater flexibility, and higher temperature and impact resistance.
独特的环氧树脂型粘合剂提升了产品性能，快干、有韧性、抗高温和抗冲击性。
This product adopts adjustable plastic board for conveyor belt, high-temperature resistance, corrosion resistance, with infinitely variable speed motor power, can be arbitrary regulation speed.
本产品线采用可调节的塑料板作输送带，耐高温、耐腐蚀，以无极变速电机作动力，可任意调节速度。
The insulation methods of several DC systems are compared and analysed. A ping-pang variable bridge measurement is adopted. The ex - act on line detection of grounding resistance is realized.
比较分析了几种直流系统常用的绝缘检测方法，采用乒乓式变电桥测量法，实现了接地电阻的准确在线测量。
A weight stack provides variable resistance during the simulated golf swing, and the device offers adjustment over multiple degrees of freedom and it can accommodate both right-and left-handed swings.
重量堆叠组件提供在模拟高尔夫挥杆动作过程中的可变阻力，所述装置提供多自由度的调整，并且可适应右手和左手挥杆两者。
In this paper, the authors investigated the method to improve the variable frequency resistance of enamel by a composite nano-powder.
本文研究了纳米复合粉体提高漆包线绝缘漆耐变频性能的方法。
A design scheme of the intelligent metal tube variable area rotameter is proposed according to the angular position measuring principle of the magneto resistance sensor.
根据磁阻传感器的角位移测量原理，提出智能金属管浮子流量计的设计方案。
By the new model, a variable displacement hydraulic pump is simulated by the ordinary hydraulic component with hydraulic resistance, abrupt pressure change and invariable flow.
该模型将变量液压泵等效为液阻、压力突变、恒流源构成的一般液压元件。
By the new model, a variable displacement hydraulic pump is simulated by the ordinary hydraulic component with hydraulic resistance, abrupt pressure change and invariable flow.
该模型将变量液压泵等效为液阻、压力突变、恒流源构成的一般液压元件。
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