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流(liu)再變(bian)成(cheng)交流(liu)，通(tong)過(guo)頻率變(bian)化控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)轉速(su)(su)，所(suo)以(yi)無(wu)刷(shua)(shua)電(dian)(dian)(dian)(dian)(dian)機(ji)在(zai)(zai)起動(dong)和(he)制(zhi)(zhi)(zhi)(zhi)動(dong)時(shi)運行(xing)不平穩(wen)，振動(dong)大(da)，只有(you)(you)(you)(you)在(zai)(zai)速(su)(su)度恒定時(shi)才會平穩(wen)。 4、直(zhi)流(liu)有(you)(you)(you)(you)刷(shua)(shua)電(dian)(dian)(dian)(dian)(dian)機(ji)控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)精(jing)度高(gao)： 直(zhi)流(liu)有(you)(you)(you)(you)刷(shua)(shua)電(dian)(dian)(dian)(dian)(dian)機(ji)通(tong)常和(he)減(jian)速(su)(su)箱、譯碼器一起使用(yong)，使的(de)電(dian)(dian)(dian)(dian)(dian)機(ji)的(de)輸出功率更(geng)大(da)，控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)精(jing)度更(geng)高(gao)，控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)精(jing)度可以(yi)達到(dao)0.01毫米，幾乎可以(yi)讓運動(dong)部(bu)件停在(zai)(zai)任何想要(yao)(yao)的(de)地方。所(suo)有(you)(you)(you)(you)精(jing)密機(ji)床都(dou)是采用(yong)直(zhi)流(liu)電(dian)(dian)(dian)(dian)(dian)機(ji)控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)精(jing)度。 5、直(zhi)流(liu)有(you)(you)(you)(you)刷(shua)(shua)電(dian)(dian)(dian)(dian)(dian)機(ji)使用(yong)成(cheng)本(ben)低，維修(xiu)方便： 由于直(zhi)流(liu)有(you)(you)(you)(you)刷(shua)(shua)電(dian)(dian)(dian)(dian)(dian)機(ji)結構簡單，生(sheng)產(chan)成(cheng)本(ben)低，生(sheng)產(chan)廠(chang)家(jia)多，技術比較成(cheng)熟，所(suo)以(yi)應用(yong)也比較廣(guang)泛，非(fei)(fei)常便宜。無(wu)刷(shua)(shua)電(dian)(dian)(dian)(dian)(dian)機(ji)技術不成(cheng)熟，價格(ge)較高(gao)，應用(yong)范圍有(you)(you)(you)(you)限，主要(yao)(yao)應在(zai)(zai)恒速(su)(su)設(she)(she)備上，比如變(bian)頻空調、冰箱等，無(wu)刷(shua)(shua)電(dian)(dian)(dian)(dian)(dian)機(ji)損壞只能更(geng)換(huan)。 6、無(wu)電(dian)(dian)(dian)(dian)(dian)刷(shua)(shua)、低干擾： 無(wu)刷(shua)(shua)電(dian)(dian)(dian)(dian)(dian)機(ji)去除了(le)電(dian)(dian)(dian)(dian)(dian)刷(shua)(shua)，直(zhi)接的(de)變(bian)化就是沒(mei)有(you)(you)(you)(you)了(le)有(you)(you)(you)(you)刷(shua)(shua)電(dian)(dian)(dian)(dian)(dian)機(ji)運轉時(shi)產(chan)生(sheng)的(de)電(dian)(dian)(dian)(dian)(dian)火花，這樣就極大(da)減(jian)少了(le)電(dian)(dian)(dian)(dian)(dian)火花對遙控(kong)(kong)無(wu)線(xian)電(dian)(dian)(dian)(dian)(dian)設(she)(she)備的(de)干擾。非(fei)(fei)洲地區的(de)發展相對落后，在(zai)(zai)目前(qian)依舊存在(zai)(zai)著電(dian)(dian)(dian)(dian)(dian)力供應不足(zu)的(de)問(wen)題，但是相比于非(fei)(fei)洲快隨發展的(de)市場(chang)，非(fei)(fei)洲人是