信号制

Key contributors to research and development of microwave radar device and circuit technology were Bell Telephone Laboratories (see microwave tube stories in this issue.), M.I.T. Radiation Laboratory, Naval Research Laboratory, Sperry (see the story on Russ and Sig Varian and Bill Hansen in this issue.), Army's Signal Corps Laboratory at Fort Monmouth, and a host of industrial equipment makers.

研究和发展微波雷达设备与线路的突出贡献者属于贝尔电话实验室（请参阅本文关于微波管的章节），MIT电子实验室，NPL，Sperry（请参阅本文关于Russ 和 Sig Varian 以及 Bill Hansen的章节），在蒙默思堡的陆军信号兵团实验室，还有工业技术设备的制。

This company mainly produces, straight shank twist drill, mill drill, saw blade, the signal line.

本公司主要生产、直柄麻花钻、磨制钻，锯片，信号线。

Base on this analysis, a method is designed to improve the measurement brake force precision and repetition in the brake tester. By choosing a suitable sampling number, applying signal processing and optimizing sampling rate, the braking force measurement had higher precision and repetition.

分析了国内目前常用的制动台力学特性，并在此基础上，讨论了提高制动台测量制动精度和重复性的方法，通过选取合适的当量点数、信号处理和优化的采样速度，使制动力测量有较高的精度和重复性

The mechanics specific properties of the brake testers commonly in use have been analyzed. Base on this analysis, a method is designed to improve the measurement brake force precision and repetition in the brake tester. By choosing a suitable sampling number, applying signal processing and optimizing sampling rate, the braking force measurement had higher precision and repetition.2. The object-oriented method is applied hi designing computer control system of MVSPIL. A real-time, multitasking control system is designed and implemented using proper time-slicing algorithm.

分析了国内目前常用的制动台力学特性，并在此基础上，讨论了提高制动台测量制动精度和重复性的方法，通过选取合适的当量点数、信号处理和优化的采样速度，使制动力测量有较高的精度和重复性； 2、将面向对象的方法用于检测线计算机控制系统的设计之中，通过合适的时间片设计，实现了多任务的实时控制系统。

During this research, detail test and analysis proved that vibration signal of ball mill can represent coal level of the ball mill and steel balls distribution. The test result could help to resolve a main problem of ball mill load measurement. The intelligent scheme for pulverizing system which was based on multi-sensors fusion technique as well as the intelligent control method was given in the thesis.

本文通过大量的分析研究和现场试验，通过对球磨机振动信号进行频谱分析，监测磨筒存煤量和钢球球径分布情况，初步解决了球磨机测控中一个关键问题；在此基础上，采用软测量、多传感器信息融合技术，引入神经网络模型等方法，并考虑与电厂DCS和计算机信息系统的连接，对智能化球磨机制粉系统进行了总体设计，在技术上有所创新。

If you cann't establish it in time, you will lost this part of market. China had spent two years on discussed about which need be first developed satellite transmission or cable. At last decision is cable transmission first according to the situation of a country. And descramble system adpot DVB-CI of Europe.

经过20年左右的探索，日本，欧洲，美国三个主要集团在HDTV的技术方面走着不同的路线。70年代开始日本就提出自己的HDTV方案，在此方案中，电视画面的垂直分解力提高到1125行，水平清晰度也相应提高，传送的信息量是NTSC制电视信号的5倍，同时把图像的宽高比从4：3扩展到16：9，使视野开阔，可获得较强的临场感觉。

After them march gentlemen of the bedchamber, Black Rod, Deputy Garter, Gold Stick, the master of horse, the lord great chamberlain, the earl marshal, the high constable carrying the sword of state, saint Stephen's iron crown, the chalice and bible.

尾随于后的是侍寝官、黑仗侍卫、勋章院副院长、仪仗队队长、主马官、侍从长、纹章局局长，以及手持御剑、圣斯蒂芬铁制王冠、圣爵与《圣经》的侍从武官长。四名司号步兵吹信号。

Characteristic ● high accuracy, good stability ● 2 line working mode, 4～20mA signal output ● sensitive component and circuit board are in solid construction, rigid vibration-proof ● excellent interference-proof, good thermal drift;● explosion-proof enclosure structure, weather-proof ● most outstanding corrosion-proof, ensure best utility reliability ● light construction, simple reasonable, no bracket required, no horizontal mounting required, available mounting at any position on pipeline.

特点● 精度高，稳定性好。●二线制工作方式，4～20mA 信号输出。●敏感部件及线路板是全固体结构，坚固抗振。●抗干扰能力强，温度稳定性好；●防爆壳体结构，可全天候使用。●具有最优良的防腐性能，保证最好的防腐性价比。●结构轻巧，简单合理，无须支架，无须水平安装，可直接任意位置安装管道上。

CNC0630.0640.6130 the Company produced series CNC lathe has all the features of ordinary things, more easily turning a number of complex parts, such as inside and outside the spherical, arbitrary circular , arbitrary cone, public Inch worm thread and so on, have the complete STM function, may be issued and receive a variety of signals to control the automatic processing flow.

本公司生产的CNC0630.0640.6130等系列数控车床具有一般普通的所有功能外，更方便地车削一些复杂零件，如内外球面，任意圆弧面，任意锥面，公英制螺纹及蜗杆等，具备完备的S.T.M功能，可发出和接收多种信号，以控制自动加工流程。

This digital thermometer design uses the American DALLAS Semiconductor Company after DS1820 promotes one kind of advanced version intelligence temperature sensor DS18B20 takes the detecting element, the temperature measurement scope may amount to 0.0625 degree Celsius for the - 55--125 degree Celsius biggest resolution, may the direct readout measure the temperature to plant, moreover used the three-wire system and the monolithic integrated circuit is connected, reduced the exterior hardware circuit, has at the same time the characteristic which the low cost and easy to use it to have the microminiaturization, the low power loss, the high performance, the anti-jamming ability strong, easy to match merits and so on microprocessor, the especially qualify in constituted the multi-spot temperature observation system, might directly the temperature inversion serial digital signal for microcomputer processing, moreover each piece of DS1820 had onlyThe product number and may store in its ROM, in order to constitution large-scale temperature observation system time hangs on the single track meets willfully many DS1820 chips.

本数字温度计设计采用美国DALLAS半导体公司继DS1820之后推出的一种改进型智能温度传感器DS18B20作为检测元件，测温范围为-55——125摄氏度最大分辨率可达0.0625摄氏度，可以直接读出被测温度植，而且采用三线制与单片机相连，减少了外部的硬件电路，具有低成本和易使用的特点同时它具有微型化、低功耗、高性能、抗干拢能力强、易配微处理器等优点，特别适合于构成多点温度测控系统，可直接将温度转化成串行数字信号供微机处理，而且每片DS1820都有唯一的产品号并可存入其ROM中，以便在构成大型温度测控系统时在单线上挂接任意多个DS1820芯片。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。