The paper introduces how to design the PLC non - contact control system in rebuilding electrical system of crane, on the basis of a practical example.
结合实际情况对以PLC为内核的全数字直流调速器电能驱动，进行了起重机的工作机构和电器系统改造实现电器系统无触点控制。
The design of the pantograph's active control system and the study of the simulation results reduce the fluctuation of the contact force theoretically and thus improve the current collecting quality.
通过受电弓主动控制系统的设计和对其的仿真研究，理论上降低了弓网系统接触压力的波动，从而改善了受流质量。
In cooperation with computer control step motor, the positioning system has such advantages as automatization, high precision, large view field and non contact etc.
该系统与计算机控制的步进电机配合使用，具有自动化程度高、大视场高精度和非接触性等优点。
When fitting each contour line, the points measured by non - contact measuring system are as the top points about control polygon for forming EE spline curve.
在拟合每个轮廓线时，先用非接触测量系统测出的数据反算出ee样条曲线控制多边形的顶点。
After reaching the rated speed, a potential-free contact (compressor running) is required for control system. The contact must be closed in this state.
当达到额定转速后，控制系统需要一个无压降连接(压缩机运行)，在这种状态下接触器必须闭合。
When a robot makes contact with external environments, some uncertainties from the contact stiff-ness have great effects on the stability of the force control system of the robot.
当机器人与外界环境发生接触时，接触刚度等不确定性因素对机器人力控制系统的稳定性有很大影响。
Non contact electromagnetic actuator was used in the active control system of transverse vibration of circular disk composed of analog circuits.
应用非接触式的电磁作动器，采用模拟器件设计了一整套圆盘横向振动的主动控制系统，并对圆盘进行了振动主动控制实验。
The movable safety piece is connected with the insulating system, is supported against by the control rod, and is in normally closed connection with the fixed contact piece.
该动保险片，它连接绝缘系统，而且，它受控制杆顶抵并常闭连 接该定接触片。
The traditional control cabinet of oil-pumping unit is using continuous electricity contact system through the mechanical touching point by closing and opening to achieve the circuit's "on" and"off".
传统的抽油机控制柜大都采用继电接触系统，通过机械式触点闭合、断开实现电路导通或断开。
The basic principle and the construction of contact-free control system are analysed, and its logic circuit and working waves are presented.
介绍了无触点控制电路的构成和工作原理，给出了逻辑电路图和工作波形图。
This paper finds a method which can indirectly control the load side voltage of the contact-less power transfer system.
本文研究了非接触电能传输系统中一种间接控制负载侧电压的方法。
Memory card system adopts transparent control-method that is compatible with the contact IC card studied previously.
整个存储卡系统采用“透明”读写方式，与原有接触式存储卡系统完全兼容。
By means of computer control, the speed control system can control the resistance of the motor without any contact, so to realize soft starting and speed control over the wound rotor motor.
这种调速系统采用计算机控制，可无触点地调节转子的电阻来实现转子绕线式电动机软启动及调速。
An error measuring system for multi-location numerical control cutter holder was developed by adopted non-contact photoelectric measuring method.
采用非接触光电式测量方法，设计了多工位数控刀架误差测量系统。
It is suggested in this paper that a kind of contact-free circuit for comparison and control should substitute for the conventional contact one in the back-forth wrapper web position control system.
提出在卷筒包装纸进退式光电定位系统中，采用无触点（全电子式）比较判别及控制电路，替代目前常用的触．点式同类电路。
This thesis chiefly involves the design and research of Access Control System based on non-contact IC (RF) Card.
本论文主要设计和研究基于非接触IC卡(射频卡)技术的门禁安防系统。
Application: it's applied to break or contact fire fighting alarm system by remote control for electric circuit, it's also available for remote trip by pressing emergency stop button.
应用：可对电气线路遥控断开、联络消防报警系统，也可以通过急停按钮遥控脱扣。
In this paper, We introduce the principle, structure, control and experiment result of a new non-contact measuring system for 3d bullet marks.
本文介绍了一种新研制的非接触式三维弹头痕迹检测系统的原理、结构、控制以及实验结果。
Safety and precision control are problems that 3-coordinate laser non-contact measuring technology be used in weapon system measuring field, and those problems must be solved.
安全性和精度控制是三坐标激光非接触测量技术在武器系统测量领域中应用所必须解决的问题。
Tis kind of machine adopts import grade SCR module control system. The contact of electrode holder is made of high chromium copper and the force of electrode holder can be adjusted freely.
该机器采用进口可控硅模块控制，焊钳夹力大小可随意调节，而且焊钳触点为高铬铜。
Synchronous closing is an intelligent control technique. It can make the moving and stationery contact-header of circuit breaker to close on the specified phase angle of the power system voltage wave.
同步关合是指断路器动、静触头在系统电压波形的指定相角处关合，以减小合闸操作的过电流和过电压的一种智能操作技术。
Synchronous closing is an intelligent control technique. It can make the moving and stationery contact-header of circuit breaker to close on the specified phase angle of the power system voltage wave.
同步关合是指断路器动、静触头在系统电压波形的指定相角处关合，以减小合闸操作的过电流和过电压的一种智能操作技术。
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