描述

SCXI-1326

由于數(shù)字電路是利用上升沿/下降沿很短的脈沖信號，所以會向外部放出包括高頻成分的多余電磁波（噪聲），而且對外部來的電磁波（噪聲）敏感地響應(yīng)，造成誤動作。另外在電路內(nèi)部也存在線間產(chǎn)生交調(diào)失真、數(shù)字器件的通/斷時電流急驟變化引起電源電壓變動等問題。這樣就需要在數(shù)字電路中考慮布線的電感和寄生電容構(gòu)成的分布常數(shù)電路、防止上沖、下沖造成波形的混亂及信號反射、延遲、衰減、線間電磁干擾的交調(diào)失真。而解決這問題的濾波器、屏蔽等都是模擬技術(shù)。由于數(shù)字電路技術(shù)在汽車、火車、收音機控制中的應(yīng)用，高可靠性地實現(xiàn)了以前用模擬技術(shù)無法實現(xiàn)的高功能。但是由于噪聲會引起系統(tǒng)及電路誤動作，尤其對機器為系統(tǒng)是致命的問題。而模擬電路即使有噪聲，也只是暫時降低數(shù)據(jù)的精度，一旦噪聲消失，就具有自我恢復(fù)功能的特征。因此將實現(xiàn)高功能的數(shù)字電路和具有自我恢復(fù)/自我確認能力的模擬電路組合應(yīng)用，對防止移動控制系統(tǒng)、數(shù)字電路噪聲引起的誤動作將會是一種安全的方案。

產(chǎn)品承諾：
保?證?全新原裝進口,
保?證?安全準時發(fā)貨，
保?證售后服務(wù)質(zhì)量，
優(yōu)勢價格，大量現(xiàn)貨。

主營DCS系統(tǒng)配件
機器人系統(tǒng)配件
大型伺服系統(tǒng)配件
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