电路

The voltage or the electric current direction is a key concept of circuit analysis.

在电路教学中，电压电流的方向是一个重要的概念，他贯穿于电路分析的整个过程。

However, for the anolog circuit's flaws in itself, the controllers in ultrasonic peening machine can not match the speed which they should track. Therefore, the machine is apt to disarrangement in the working state or even can not work in some cases.

但由于其模拟电路本身固有的缺点，超声冲击机内部控制电路频率跟踪系统的速度和精度以及稳定性均达不到要求，从而造成系统失谐，机器不能正常运转。

Time Inter-plug circuit is the key module of random sample DSO. It can improve the equivalent sample rate and horizontal time discrimination of DSO efficiently.

时间内插电路是随机取样数字存储示波器的关键电路，能有效提高数字存储示波器的等效采样速率和水平扫描时间分辨率。

The system achieves a sampling rate of 800Msps, and converts the high speed LVDS signals to low speed LVTTL signals using FPGA. And the FPGA implements the amplitude discrimination and obtains time information. Then FPGA sends the data to the TELL1 readout board.

该系统最高可达800M的采样率，通过FPGA进行电路控制，实现数据的串并转换、数据缓存、幅度甄别与时间信息的获取等功能，最后数据通过TELL1接口电路连接至以太网，用计算机进行读取与分析。

It can be used with TV and computer which has video card as a display terminal.

针对ICX415AL的结构和特点，设计了系统的时序电路和驱动电路。

This paper also intruduces the resource distribution and the function of outer circuits.

在焊机的主电路和控制电路部分都进行了抗干扰设计。

The design of the power driver module and distributive circuit of driver signals were discussed in detail.

重点介绍了功率驱动电路和驱动信号分配电路的设计。

In accordance with the current research state of track circuit and the domestic practical demand, digital simulation modeling of track circuit working state analysis and antiinterference analysis is studied in this dissertation, as well as the design and realization of the digital simulation program.

论文针对当前轨道电路系统的研究状况和国内的实际需求，研究了轨道电路工作状态分析和抗干扰特性分析数字仿真模型的建立、数字仿真程序的设计与实现等问题。

Aiming at the defects on structure design, electromagnetic design, analysis simulation, optimization design and control technology, double-action iron core mechanism, feedback-hold circuit of energy-saving capacitor voltage and intelligent control circuit were expounded, which can be a guidance for wide application...

针对目前永磁接触器在结构设计、电磁设计、分析仿真、优化设计与控制技术等方面存在的不足，重点阐述了双动铁心永磁机构、储能电容电压的反馈-保持电路及智能控制电路。为促进永磁接触器的推广应用指出了进一步的研究方向。

The Periscope Drawtube will be bent because of the water resistance in sailing and this bend will cause the error of star measurement. Due to its especial structure, contactless measurement is the only way to measure its bend degree. First this paper introduces the method by linear array CCD based on structure and light path; Second it expatiates linear array CCD work principle and driving scheduling with example of TCD1501C and the driving circuit by CPLD. The output signal of linear array CCD includes common disturbance so the differential amplifier is needed. In order to make the signal adapt to computer processing, a threshold circuit with Schmitt characteristic and the data process following threshold are given. At last, some key problems in application are given.

潜艇潜望镜的镜筒在航行时受到水的阻力会产生弯曲变形，这种变形会造成潜艇对星体测量的误差；由于镜筒结构的特殊性，对其弯曲程度的测量只能采用非接触方法；首先从结构和光路方面介绍采用线阵CCD作为检测元件实现对镜筒弯曲程度的测量；其次以东芝公司的线阵CCD（TCD1501C）为例阐述了其工作原理及驱动时序的控制要点，并介绍了基于可编程逻辑器件的线阵CCD的驱动电路；线阵CCD输出的信号中含有共模干扰，必须采用差分放大器将其抑制；为将信号转化为适合计算机处理的数字信号，文中给出了有一定实用价值具有施密特特性的二值化处理电路及二值化后的数据处理过程；最后阐述了在实际使用中的一些关键问题。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。