歐姆龍伺服電機(jī) R88M-G05030H-Z
1.功能測(cè)試不能代替參數(shù)測(cè)試 
2. 功能測(cè)試僅能測(cè)試到器件的截止區(qū)，放大區(qū)和飽和區(qū)，但無法了解此時(shí)的工作頻率的高低和速度的快慢。 
3. 對(duì)數(shù)字芯片而言，僅知道有高低電平的輸出變化，但無法查出它的上升和下降沿的變化速度。 
4. 對(duì)于模擬芯片，它處理的是模擬的變化量。其受電路的元器件的分布，解決信號(hào)方案的不同的影響，是錯(cuò)綜復(fù)雜的。就目前的在線測(cè)試技術(shù)，要解決模擬芯片在線測(cè)試是不可能的。所以，這項(xiàng)功能測(cè)試的結(jié)果，僅能供參考。 
5. 大多數(shù)的在線測(cè)試議，在對(duì)于電路板上的各類芯片進(jìn)行功能測(cè)試后，均會(huì)給出“測(cè)試通過”或“測(cè)試不通過”。那么它為什么不給出被測(cè)器件是否有問題呢？這就是這類測(cè)試儀的缺撼。因?yàn)樵诰€測(cè)試時(shí)，所受影響（干擾）的因素太多。要求在測(cè)試前采取不少的措施（如斷開晶振，去掉CPU和帶程序的芯片，加隔離中斷信號(hào)等等），這樣做是否均有效，值得研究。至少，目前的測(cè)試結(jié)果有時(shí)不盡人意。 

歐姆龍伺服電機(jī) R88M-G05030H-Z
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歐姆龍伺服電機(jī) R88M-G05030H-Z