控制信号

Radar signals were fed into a computer which energised flexible shafts driving actuators which tilted or slewed the reflector glass to the left or right, giving a correct point of aim.

雷达信号被反馈给计算机，计算机通过一个软轴驱动一个控制臂来翘起或回转反射镜往左或往右，给出一个正确的瞄准点。

Radar signals were fed into a computer which energised flexibleshafts driving actuators which tilted or slewed the reflector glassto the left or right, giving a correct point of aim.

雷达信号被反馈给计算机，计算机通过一个软轴驱动一个控制臂来翘起或回转反射镜往左或往右，给出一个正确的瞄准点。

Arbitrary waveform generator is widely used in experiment and practical work as signal sourer. Apply the HSO function of 8OC198KC MCU to generate PWM waveform, then use the PWM to compose arbitrary waveform. The concrete hardware control circuit and the software realization method are presented. Then take the three-phase SPWM waveform generator for example, pot forward the application circuit and show the result of test. Experiment shows that the waveform distortion of sine, triangle and sawtooth is small and the operation is simple. The performance is high.

任意波形发生器作为信号源，在实验教学和实际工作中有着广泛的应用；应用Intel公司80C196KC单片机的HSO功能产生PWM波形，再由FWM波合成频率在20~100Hz之间的任意波形；设计了具体的硬件控制电路和详细的软件实现方法，并以三相SPWM波形发生器为例，给出了实际应用电路及其测试结果；实验结果表明，该波形发生器产生的三相正弦波，三角波、锯齿波失真度小，操作简单，直观，性能价格比高。

The development of HDTV makes more demands of displaye r. It has comprehensive value to display and control HDTV on digital flat panel di splayer by format conversion.

HDTV高清晰度电视的发展对显示器提出更高要求，利用视频格式转换技术实现HDTV信号在平板显示器上的显示与控制具有广泛的实用价值。

The resolution,which is flexible,expandable and general,is successfully introduced into the design of system of dualmodule data fusion to implement realtime synchronal data acquisition for radar seekers.

该方案控制方式灵活可变、具有一定的扩展性和通用性，已被成功地应用于双模信息融合系统的设计中，实现了对雷达导引头的多信号实时同步采集。

The signals separately and synchronically control the start and stop of accumulated count of detected flowmeter.

该信号分别同步控制被检流量计累积计数采集的起始与终止。

Using digital signal processor can reduce the calculating time. Since the control pulses of axes are synchronistical during timer interrupt periods, the interpolating trajectory are significantly improved.

利用数字信号处理器进行三次B样条曲线实时插补，可缩短插补计算时间；通过设定DSP的定时器中断来实现各轴控制脉冲的发送，可实现最大限度地减少折线状的插补轨迹的目的。

It also illustrates the general design project, the design process and construction of the PLC control system for three-story buildings, listing the specific main circuit, trapezia control chart of elevator and repertoires.

并给出了系统组成框图和程序流程图，在分析、处理随机信号逻辑关系的基础上，提出了PLC的编程方法，设计了一套完整的电梯控制系统方案。

The article introduces some needed resolving problems. It brings forward principium of control, How can drive the servo signal and X and Z to the coordination of movements; How to change the feed rate; design of system structure, confirmation for input and output point, I / O address allocation;and also the project for speedup/down control during the screwthread processing. Method of programming design and manual operation trapeziform figure in system of numerical control lathe Corresponding project to problems is provided synchronously.

介绍可编程控制器应用于车床数控系统需要解决的问题，如何产生驱动伺服机构的信号及X、Z向的动作的协调；如何改变进给速度等；提出PLC作为数控机床主控制器的控制原理；系统结构设计；输入/输出点数确定及输入/输出点的地址分配；螺纹加工中升、降速的解决方案；程序设计及具体操作梯形图设计的方法，并给出相应的解决方案。

The switching power amplifier is optimized based on the achievement of electromagnetic force, and the circuit structure of tristate power amplifier with soft-switching is designed. This circuit owns the advantages of reducing the dissipationpower on the power component and improving the speed of system dynamic response, enhancing the stability of the electromagnetic force in the final state, and the nice result is presented by the simulation. The small-signal model of the power amplifier is also established.

在实现支撑所需的电磁力基础上，对开关功率放大器电路进行了优化设计，采用三电平软开关的电路结构，以降低主功率器件的功耗、提高系统的动态响应速度、提高稳态电磁力的平稳性；仿真分析表明可以达到预期的效果；最后还建立了功率放大器的小信号模型，为控制系统的调节器设计提供了依据。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。