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：提出一種基于虛擬儀器技術(shù)的多功能電能質(zhì)量標(biāo)定儀的設(shè)計(jì)方案，采用虛擬儀器編程技術(shù)和電力電子技術(shù)相結(jié)合實(shí)現(xiàn)集目前電能質(zhì)量領(lǐng)域的多樣信號于一體久久永久免费在线。介紹采用fpga實(shí)現(xiàn)高速數(shù)字量采集igao网变成什么网站了、d/a轉(zhuǎn)換及4通道模擬量輸出、非對稱同步控制fifo等的集成信號發(fā)生單元超黄色毛片久国产，闡述利用vc編程實(shí)現(xiàn)的電力系統(tǒng)多樣信號的產(chǎn)生流程A片ⅴ7v.C，分析信號放大單元的結(jié)構(gòu)設(shè)計(jì)。實(shí)驗(yàn)測試結(jié)果表明該標(biāo)定儀達(dá)到目前先進(jìn)的高精度等級色污污网站，由于其準(zhǔn)確性和多功能性將加快電能質(zhì)量標(biāo)定的步伐人人添人人澡人人澡人人人爽。

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 .

視頻卡也稱圖形卡，顯示卡或顯示視頻適配器www.A黄色网站，它將數(shù)字輸出轉(zhuǎn)換成通過電纜發(fā)送到顯示器的模擬視頻信號欧美强奸乱码中文字幕。

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，根據(jù)具體頻道源字段的值欧洲美洲精品一区二区三区，將其調(diào)諧到數(shù)字有線頻道和模擬有線頻道之一的頻道頻率日日操日日干日日插。

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

以前系統(tǒng)都是將采集到的模擬信號轉(zhuǎn)化成計(jì)算機(jī)能識別的數(shù)字信號。

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

調(diào)制解調(diào)器將發(fā)送端計(jì)算機(jī)的數(shù)字信號轉(zhuǎn)換成可通過電話線傳輸?shù)哪M信號美国一级黄片的黄色美国的现在能放出来的。

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

調(diào)制解調(diào)器可以將數(shù)據(jù)從數(shù)字信號轉(zhuǎn)換成可以通過電話線傳輸?shù)哪M信號国产精品久久久久精品三级专区。

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

對典型的模擬精神，不是所有轉(zhuǎn)換器都用相同的數(shù)據(jù)格式一级黄色视频免费下载观看真人视频。

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

將采集到的模擬數(shù)據(jù)轉(zhuǎn)換成為數(shù)字信號并傳給電腦免费三级片欧美，還有在單片機(jī)上顯示。

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.

將數(shù)位與類比數(shù)據(jù)并存保留是極為重要的黄片一级午夜福，因?yàn)檫@能更真實(shí)地呈現(xiàn)這個(gè)世界一级a片性爱无码鲁鲁网。

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

因此，越來越多的信號處理工作趨向于在數(shù)字領(lǐng)域來完成亚洲区综合。