电路

An important advantage of this circuit is that the traditional tungsten filament lamp amplitude regulator is eliminated along with its time constant and linearity problems.

这个电路的主要优点之一是克服了传统钨丝灯幅值调节电路所带来的时间常数以及线性度方面的问题。

This system uses the deuterium lamp as its blazed lamp-house, and makes mechanical turnplate in use of modulating light signal with two frequencies, which is drived by in-phase electromotor with constant velocity. A potomultiplier tube is used to conversion optical signal to electric signal. Using Lock-In Amplifiers to realize magnifying the metrical signal using difference method with two different frequencies. We also analyze its principle of each part of the apparatus and design the realization circuits of each part. The data analysis and the in-phase electromotor control circuits are fulfilled by SCM; the single chip control systems hardware interface and software design are given.

该系统的光路部分使用氘灯作为激发光源，用同步电机恒速驱动的机械盘调制出双频光信号，利用一个光电倍增管进行光电信号转换；信号处理部分采用锁相放大器实现信号双频差分处理，分析了其各组成部分的原理，设计了各部分的具体实现电路；使用单片机进行数据差分处理和电机控制，给出了单片机控制处理系统的硬件接口电路和软件设计。

Compared with the previous circuit, the current of the main switch is decreased and the converter losses are reduced because of the soft-switch; adjusting the turns ratio of the auxiliary winding can decrease the voltage of the rectifier.

应用于推挽正激电路[6，7]的软开关电路拓扑通常是考虑在其整流桥之后增加一个辅助谐振网络，利用谐振电容上的电压来封锁整流桥，从而达到零电流关断主管的目的。

However , to realize t he same system f unction , different circuit designer may adopt different method , there is a problem of complexity in circuit s.

但是，实现同样的系统功能，不同的电路设计师可以采用不同的实际方法，这样就存在一个电路复杂程度的问题。

The sterilization by the means of pulsed- light is a new method of unheated sterilization.

脉冲强光杀菌是一种新兴的冷杀菌技术，本文设计脉冲强光杀菌的发生电路，对其进行了初步的设计研究，使用双电源脉冲发生电路提供能量。

The concrete circuit includes: Signal transformation unit, manual-automatic phase shifting triggering circuit, manual regulation unit.

具体电路有：信号转换单元、手动和自动移相触发电路、手动调节单元。

In order to satisfy parallel units application and real-time requirement,according to the communication protocol with a 16-bit Cyclic Redundancy Checkalgorithm,monitoring software based on Windows platform with CSerialPort class,a universal multithread serial port class,is developed to realize reliable maintenance and control of micro-turbine.

涡轮发电机实际上是由安装在同一轴上燃气涡轮和发电机组成，系统结构框图见图1。采用DSP芯片为核心的数字功率控制器包括功率电路和控制电路两部

The results of this paper are usful for the design of SiGe HBT used in different analog integred circuits.

由于在不同的电路中对器件的性能要求是不同的，本文的结论在具体的模拟电路中采用SiGe HBT器件的设计提供了指导。

A new type of resonant viscosity vacuum gauge based on the electrostatically excited silicon micromechanical resonators is developed in Chapter 6, that will measure pressure over the range from 1 Pa to 1. 33E3Pa. The theoritical analysis and the experimental results are presented.

最后，在闭环恒幅驱动电路的基础上进行了静电激励微谐振器应用于真空测量的研究，分析了静电激励谐振式真空传感器的原理及其对电路设计的要求，在此基础上实现了一种新型谐振型粘滞性真空计。

The device is suitable for industrial applications and is weather, explosion, chemical, dust and vandal proof.

喇叭功耗为3W，由于其电波干扰补偿电路和麦克特性补偿电路的设计，较适用于工业高噪音环境下。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了