So when the work of the poor, which would create a unijunction transistor pulse frequency instability (signal is taken from the CFA BG2 electrode voltage), main circuit operating voltage is unstable and the motor speed.
因此当该惯处事不良时，即会变成独结晶体惯不收回的脉冲频率不安不退(暗记存自不收大惯BG2，集电极的电压)，从而引起宾电路处事电压不安不退，电机转速不稳。
The high precision numerical-control-compound-use pulse heat seal combines heat seal, soldering, ACF in it, matching the self-designed servo system of no oil and free-maintain and load workplace, while the stepping motor drive is controlled by PLC. Its predominant load, accelerate and decelerate linearity, repetitiveness and precision make the cylinder and other modes perfectly, moreover, it is easy to amend the parameter on the PLC and make the press and target position doing numeral adjustment. The temperature, time, daily output can be amended and displayed on the PLC penel straightly, all parameters can be seen.
高精度数控复合用途脉冲热压机﹐该机集热压﹑焊锡﹑ACF于一身﹐配合本公司专门开发的无油免维护可负重工作台伺服机构由PLC控制步进电机驱动﹐其优越的负重性﹑加减速线性﹑重复性及精度令直线气缸及其它方式无以比美﹐而且可方便地在PLC面板修改参数﹐使压位及瞄准位均可进行数控调整﹑温度﹑时间﹑日产量统计可直接于PLC面板修改与显示﹐使参数一目了然。
Can be seen, with the change in angle θ, each plunger is the torque generated by changing the external hydraulic motor torque output is the total pulse.
可见，随着角θ的变化，每个柱塞产生的转矩是变化的，液压马达对外输出的总的转矩也是脉动的。
The parameters of electrical pulse voltage in a simulative generator are determined on the basis of pulse width modulationof voltage wave in inverter-fed motor.
1前言脉冲宽度调制的陡峭电压波形是变频电机的绝缘过早损坏，寿命比使用正弦波电压的传统电机大大缩短的主要原因[1]。
Desynchronization phenomena which occur in a linear pulse motor at high-speed operation could be avoided in a linear dc motor.
在一台线的脉搏马达中在高速的运作发生的Desynchronization现象能被在一台线的直流马达中避开。
The system is based on 8051 MCU control, adopting FPGA to achieve the pulse-driven of stepper motor to be allocated as a core circuit supported with necessary digital analog circuit, achieve a 4-phase 8-step stepper motor positioning control system.
系统基于51单片机控制，以FPGA芯片来实现驱动，步进电机的脉冲分配作为核心电路加以必要的数字模拟辅助电路，形成一个4相8拍定位系统。
In this measuring system design, we use 8051 MCU as main control part that can harmonize other parts, such as LCD display, pulse generating and pulse counting; pulse stream generator design is a key and hard technology in this system design. We use CPLD as pulse distributor so that motor movement can drive piston pout pulse stream, and the above design had been tested has good performance. The difficulty of the electronic system design lies in the laser is very faint for being photodetected, known as 10-6~10-9W. After lots of test, we bring forward a new design of the photoelectricity system, it has the advantages of both reduce the noise and magnify the signal. Among this, ellipse type filter can reduce the beyond band noise very well. At last, through the performance test and results analysis, primary experimental results indicates that the project useing the method of non-contact IOP measurement based on laser interference to measure IOP should be feasible, and are turning into mature.
本眼压测量系统以8051单片机为主控制系统，主要用来控制其他部分协调工作，如液晶显示、脉冲发生、脉冲计数；脉冲气流发生器是这个眼压测量系统设计中的一个难点和重点，我们通过CPLD实现脉冲分配，然后驱动步进电机产生运动，从而推进活塞产生脉冲气流，性能稳定可靠；电信息处理电路的设计难点在于因为入射到光电检测器的光信号非常微弱，只有10-6~10-9W量级，我们通过大量实验设计出一种新的光电检测电路结构，不但降低了噪声而且对光电转换后有用的电信号进行了适当的放大；电信息处理系统中有源带通滤波器部分对光电检测系统中带外噪声可以很好滤除，有源带通滤波器采用椭圆函数型滤波器对系统性能有很大的改善作用；最后对整体系统进行了性能测试和结果分析，实验结果表明：用激光干涉式非接触眼压测量系统测量眼压这一方案是可行的，而且正在逐渐走向成熟。
Stepper motor is a pulse will be transferred into angular displacement of the Electrical and Mechanical-DAC devices.
步进电机是一个将脉冲信号转移成角位移的机电式数模转换器装置。
Pulse motor; finite element; composite structure; ANSYS; optimum design
脉冲发动机；有限元；复合结构； ANSYS ；优化设计
Timer T0 is working in timing mode. The initial value corresponding to the reference value is calculated and pre-stored in tables of the program, and it will be send to timer T0 when the linkage controlling subprogram is running. The motor X and motor Q, which are in charge of wire feeding, take T0's value as reference pulse time delay and run synchronously following it at certain ratio.
采用T0定时，计算出此基准值对应的初值，事先存于表中，运行联动子程序时，取出赋给T0.X电机脉冲延时值和Q送丝电机脉冲延时值都以此为基准，在联动时按照一定的比例同步运行，以达到对送丝速度进行控制的同时，调节焊接速度。
Usually, use voltage source type pulse width modulation control as brushless dc motor control system with the driver.
通常，采用电压源型脉宽调制控制作为无刷直流电机调速系统用的驱动器。
I thought at length about putting in a voltage doubler circuit to charge the smaller reversing battery from the main forward battery so that it doesn't have to be removed and charged but some research of available parts suggested that the cost of such an approach was quite high, however an unintended outcome of using the totem pole output design and the separate negative battery approach is that the current spike that is caused by the magnetic field collapse within the motor when the forward MosFET turns off at the oscilator rate at low speeds gets transferred to the negative battery by the protection schottky rectifier across the negative P Channel MosFET and this current pulse is quite significant.
我以为，在长度约将在一个电压倍增电路收取较小的扭转电池从主要着电池，所以它没有被遣送离境，并被控，但一些研究现有的部分建议的成本，这种做法是相当高，但是一个意外的结果，使用图腾柱输出的设计与单独的负面电池的做法是，目前穗这是所造成的磁场崩溃内部的电机时，提出的MOSFET关闭在oscilator率在低速得到转移以负面电池保护肖特基整流器全国的负面P通道MOSFET和电流脉冲，这是相当可观。
This thesis lays a solid foundation for the research on damage mechanism of inter-turn insulation of inverter-fed motor under high voltage square wave pulse and corresponding protection countermeasures.
论文工作为研究高压方波脉冲下变频电机匝间尽缘的破坏机理及寻求相应的防护对策打下了良好的基础。
The control of motor speed was realized by pulse width modulation.
转速控制采用单片机系统中的脉宽调制原理。
When stepping motor works in some pulse frequency, it may have the problem of oscillation and miss of synchronization, so it should be avoided at full steam.
在一定控制脉冲频率下，步进电动机可能出现振荡与失步现象，严重影响步进电动机的运行，要严格防止这种情况发生。
Step-by-step electric motor is the ring opening gating element changing electricity pulse signal into angular displacement or line displacement.
步进电机是将电脉冲信号转变为角位移或线位移的开环控制元件。
These fans also act like loud speakers for the frequency of the pulse used (the motor coils act like the magnet coil of the speaker, the fan blades act like the membrane).
这些球迷还像一个loud speakers为脉冲频率使用（电机线圈像扬声器，风扇叶片膜的行为像磁铁线圈的行为）。
Based on the objective lens and voice coil motor of the current DVD pickup head, according to photobleaching three-dimensional (3D) optical information storage's theory of two-photon absorption, the Ti∶sapphire femtosecond pulse laser was used as written optical beam and reading optical beam of two-photon three-dimensional optical storage voice coil motor was carried through multiplayer choice, and the storage and readout experimental study of binary format code with two-photon photobleaching in the new photobleaching material consisting of stilbene derivant was conducted.
基于现有的DVD光头物镜与音圈电机，根据光致漂白的双光子吸收三维光信息存储原理，以钛蓝宝石飞秒脉冲激光进行双光子光信息写入和读出，利用音圈电机进行选层，在新型光致漂白材料二苯乙烯衍生物中进行光致漂白二进制编码信息的存储和读出实验研究；实现了三层光信息存储，信息点间距和信息层间距分别为4 μm和15 μm；用Matlab软件读出信息的信号强度并对其进行了识别，识别结果与写入的二进制编码信息完全一致。
With many advantages, Space-Vector-Pulse-Width-Modulation is a better method conlpared with Sinusoidal PWM in field of AC motor speed regulation.
异步电机在两相同步旋转坐标系下的数学模型表明：可以实现交流感应电机磁场和转矩的解耦控制。
Quick stepper motor for high-frequency and smaller torque output, usually in the N cm level, can be used as the control of small precision machine tool table can also hydraulic and Amplifier of electro-hydraulic torque pulse CNC machine motor to drive the table, and the stepper motor power output is more torque on the N m-class, the machine can be driven directly to the moving parts.
快速步进电动机连续工作频率高而输出转矩较小，一般在N·cm级，可以作为控制小型精密机床的工作台也可以和液压转矩放大器组成电液脉冲马达去驱动数控机床的工作台，而功率步进电动机的输出转矩就比较大是N·m级的，可以直接去驱动机床的移动部件。