查询词典 analog signals

CCDs, on the other hand, usually hook up to an "Analog Front End" chip, such as the AD9948, that processes the analog output signal, digitizes it, and generates appropriate timing to scan the CCD array.

另一方面， CCD 往往连接到&模拟前端&芯片上，如 AD9948，该类芯片处理模拟输出信号，对其进行数字化，并产生恰当的时序信号来扫描 CCD 阵列。

This paper presents the Proteus software under a micro-controller board simulation method, and gives a digital-to-analog converter, analog-to-digital conversion、ISP programming、numeral clock 、real-time digital clock ﹑ Lantern experimental keyboard ﹑lattice LED ﹑ Relay, voice and other tenets of the hardware modules and software flow chart.

本文介绍了在Proteus软件下实现了一套单片机实验板的仿真方法，并给出了数模转换、模数转换﹑ISP编程﹑数字钟﹑实时时钟、键盘﹑彩灯实验﹑点阵LED显示屏﹑继电器、语音等模块的硬件原理及软件流程图。

This paper presents the Proteus software under a micro-controller board simulation method, and gives a digital-to-analog converter, analog-to-digital conversion、ISP programming、numeral clock 、real-time digital clock ﹑ Lantern experimental keyboard ﹑lattice LED ﹑ Relay, voice and other tenets of the hardware modules and software flow chart.

论文编号：JD607 包括开题报告，任务书，外文翻译，论文字数：10522，页数：46本文介绍了在Proteus软件下实现了一套单片机实验板的仿真方法，并给出了数模转换、模数转换﹑ISP编程﹑数字钟﹑实时时钟、键盘﹑彩灯实验﹑点阵LED显示屏﹑继电器、语音等模块的硬件原理及软件流程图。

In the analog domain, the basis for the basic implementation of a two-position controller is an analog comparator or an open-loop operational amplifier.

在模拟域，双位置控制器的主要部分是模拟比较器或开环运算放大器。

In this design, hardware circuit adopts liquid crystal screen and program sensor keyboard as interactive interface, 96 single-chip as chief controller, analog multi-circuit switch as transmission signal. To improve conversion accuracy, I also bond an analog to digital converter%26mdash;AD1674, so the programs mainly contain the display program design of the LCD module, the key-board control program and cyclical monitoring of various parameters and so on.

本文的硬件电路采用液晶显示屏和触摸式键盘作为人机交互界面，用80C196KB作为主控制器，用模拟多路开关传输信号，并且为了提高转换精度，外接了模数转换器AD1674，所以本设计的程序主要包括液晶显示程序、键盘管理程序、控制巡回采样等模块。

These modular units include analog input multiplexers, analog output devices,"blank" breadboards, signal conditioning modules for thermocouples, and so on.

这些模块化的单位包括模拟输入多路复用器，模拟输出设备，&空白&面包板，热电偶信号调节模块等等。

a kind of design project of multifunction electric power quality gauged instrument based on virtual instrument is put forward in this article.this system integrates virtual instrument programming and power electronics together,to realize diverse signals of current electric power quality field allin one.the integrated signal generator unit which carries out the collection of high speed digital data,d/ a conversion and analog output in four channels,unsymmetrical synchro control fifo etc.by fpga are introduced,the flow of electric power system various signal which generates by vc programming is elaborated,and the structural design of signal amplification unit is analysed.the experiment text result shows that this gauged instrument has attained current advanced high grade of accuracy and it will accelerate the steps of electric power quality calibration because of its accuracy and versatility.

摘 要：提出一种基于虚拟仪器技术的多功能电能质量标定仪的设计方案，采用虚拟仪器编程技术和电力电子技术相结合实现集目前电能质量领域的多样信号于一体。介绍采用fpga实现高速数字量采集、d/a转换及4通道模拟量输出、非对称同步控制fifo等的集成信号发生单元，阐述利用vc编程实现的电力系统多样信号的产生流程，分析信号放大单元的结构设计。实验测试结果表明该标定仪达到目前先进的高精度等级，由于其准确性和多功能性将加快电能质量标定的步伐。

The paper also analyses in detail the input channel of analog signals and the measurement of the frequency and the difference in phase.

对模拟量输入通道，频率和相位差的检测做了详细的分析。

It can offer two independent channel analog signals.

该款波形发生器能够产生2路完全独立的模拟信号。

Frequency Division Multiplexing is a method of sending multiple analog signals simultaneously over one channel by separating the channel into subchannels, or bands.

司多频率司多频率的方式发送了100多个频道的模拟信号的同时，把渠道变成阶。

Although translator has turned from being a crystal ball by which the original culture can unrestrainedly penetrate to another crystal ball by which the target culture can freely traverse, the translator's personal embodiment, in the process of cognitive act, are still absent in translation studies. Translators are still subjects without body or simply disembodied subjects.

译者虽然由原语文化可以自由穿透的玻璃球变成了译语文化可以自由穿越的玻璃球，但译者认知过程中的个体体验在翻译研究中依然缺席，译者依然仅仅是一个没有躯体体验的主体。

Chillingly, he claimed our technology is 'not nearly as sophisticated' as theirs and "had they been hostile", he warned 'we would be been gone by now'.

令人毛骨悚然的，他声称我们的技术是'并不那么复杂，像他们一样，和"如果他们敌意"，他警告说，'我们将现在已经过去了。