查询词典 analog to digital

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。

A video card , also called a graphics card or video adapter , converts digital output into an analog video signal that is sent through a cable to the monitor .

视频卡也称图形卡，显示卡或显示视频适配器，它将数字输出转换成通过电缆发送到显示器的模拟视频信号。

Then, it is tuned to a channel frequency of one of a digital cable channel and an analog cable channel based upon a value of the details channel source field.

然后，根据具体频道源字段的值，将其调谐到数字有线频道和模拟有线频道之一的频道频率。

Prior to acquisition system are the analog signal into the computer can recognize the digital signal.

以前系统都是将采集到的模拟信号转化成计算机能识别的数字信号。

A modem converts the digital signals of the sending computer to analog signals that can be transmitted through telephone lines.

调制解调器将发送端计算机的数字信号转换成可通过电话线传输的模拟信号。

A modem is a device that converts data from digital computer signals to analog signals that can be sent over a phone line.

调制解调器可以将数据从数字信号转换成可以通过电话线传输的模拟信号。

True to the analog spirit, not all data converters use the same digital format.

对典型的模拟精神，不是所有转换器都用相同的数据格式。

Will be collected analog data converters and digital signal to the computer, as well as in the single-chip display.

将采集到的模拟数据转换成为数字信号并传给电脑，还有在单片机上显示。

The artist feels it is important to include both digital and analog data in our lives, because it is more representative of the real world.

将数位与类比数据并存保留是极为重要的，因为这能更真实地呈现这个世界。

So, it is becoming more and more common to deal with analog signal with digital circuit.

因此，越来越多的信号处理工作趋向于在数字领域来完成。

In this section we look at the theory behind the techniques used in rotary polishing and the effects that they have on paintwork and the results achieved.

在这里看抛光剂使用背后的理论，到底是怎么一回事，我们如何用好的抛光机和好的使用技巧来达到好的效果。

I'll dig like a psychotic rodent if I have to.

那我就帮你挖到中国去。