查询词典 oscillatory circuit

In view of these shortcomings this frequency meter has made the radical innovation in the design its merit is: Uses the core component is the advanced monolithic special-purpose frequency measurement component -- monolithic frequency meter the integration rate is high the volume is small consumes the electricity province function has realized the frequency meter high integration and the microminiaturization; So long as the monolithic frequency meter adds on the crystal oscillator the measuring range choice the frequency demonstrated and so on the very few components then constitute DC to the 10MHz miniature basic frequency measurement electric circuit; But the biggest merit was this frequency meter has realized monolithic frequency meter frequency sampling electric circuit and the monolithic microcomputer three between hardware and the software connection completely caused the frequency measurement measuring range the choice the frequency data survey the sampling as well as the code frontier transformation and the data dump possible monolithic microcomputer software programming automatically to carry on thus has realized the frequency measurement and the sampling work intellectualizes completely causes this system already to be possible to constitute a miniature intelligence to measure rate the instrument core electric circuit independently also might take in the large-scale automatic control or a test system intelligent subsystem.

摘要传统的测频仪器体积很大，耗能量大，主要靠手工操作，而最大的缺点是不可编程，其量程转换、数据测量、采样控制和处理等均不能通过程序指令来进行控制，无法作为一个微型智能子系统与某一大型自动控制或测试系统进行接口。针对这些缺点，本频率计再设计上作了根本的革新，其优点是：所用核心器件是先进的单片专用测频器件——单片频率计，集成度高，体积小，耗电省，功能强，实现了频率计的高度集成化和微型化；单片频率计只要加上晶振、量程选择、频率显示等很晌慰的器件即可构成一个DC至10MHz的微型基本测频电路；而最大的优点则是本频率计完全实现了单片频率计、频率采样与单片微机三者之间的硬件与软件接口，使得测频量程的选择、频率数据的测量、采样以及编码的边境转换和数据的转储均可能过单片微机的软件编程自动进行，从而实现了测频与采样工作的完全智能化，使得本系统既可独立构成一个微型智能测率仪器的核心电路，也可作为大型自动控制或测试系统中的一个智能子系统。关键词高度集成化，单片机，频率计，电路

Actuator element for levering and out printed circuit modules with locking slide, front element for printed circuit module with actuator element, and subrack that receives printed circuit modules

用于推入和拉出印制线路插件的、带锁紧滑块的操纵件，印制线路插件的、带操纵件的前护板组件和用于固定印制线路插件的插件支架

In hardware designing of the microcomputer protection, it mainly presents the realization of telemetering circuit, teleindication circuit, and telecommand circuit.

其中在微机保护系统的硬件设计中，主要介绍了遥测电路、遥信电路、遥控电路等功能的实现。

See Air Circuit Breaker, Main Breaker, Molded Case Circuit Breaker and Power Circuit Breaker.

见空气线路断路器、主开关、塑壳线路断路器等）。

Using low voltage vacuum circuit breaker and air circuit breaker, the low voltage electric circuit having the functions of frequently setting up and on and protecting was designed.

应用结果表明，以低压真空断路器和空气断路器为中心，设计的低压供电部分，可满足试验系统频繁分和与保护的要求。

See Air Circuit Breaker Main Breaker Molded Case Circuit Breaker and Power Circuit Breaker.www.topenergy.org8'0P6ld }w

见空气线路断路器、主开关、塑壳线路断路器等）。

In the interruption test of the air circuit breaker , the oscillating circuit provides the short circuit current the experiments investigate the characteristics of arc movement in chamber.

利用振荡回路提供短路电流，对额定电流为2000A的框架式断路器灭弧室电弧运动特性进行了试验研究，同时对灭弧室加装产气材料与否进行对比试验研究。

Aiming at fault of operating cycles counters of LW10B-252 circuit breaker in certain substation,it was proposed that the fault counters were found by using counters loop air circuit breaker to simulate motion of circuit breaker when the counters loop in good connection.

针对某变电站LW10B-252型断路器动作计数器故障问题，提出在该计数器回路接线良好条件下，采用其回路的空气开关模拟断路器动作的试验方法查找故障计数器。

Air Circuit Breaker, Mold Case Circuit Breaker, Miniature Circuit BreakerMCB

低压断路器工厂为现代重工电气有限公司三大工厂之一，占地面积10，240平方

This paper discusses some kinds of function circuits to receiver for moblie telephone,incuding antenna circuit、low noise amplifier circuit and mixing circuit,the emaphsis are put on their performance indexes、characteristics and applications.

本文讨论了移动电话接收机功能电路中常见的几种天线电路、低噪声放大电路及混频电路，重点放在它们的性能指标、特性及应用方面。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。