電動執行器又稱(cheng)為(wei)電(dian)(dian)(dian)動(dong)執行機構(gou)。它(ta)是一種(zhong)能提(ti)供直(zhi)線(xian)或(huo)旋轉運動(dong)的驅動(dong)裝(zhuang)置，它(ta)利用(yong)某(mou)種(zhong)驅動(dong)能源并在某(mou)種(zhong)控(kong)制信號作用(yong)下工作。可應用(yong)于(yu)多種(zhong)工業自動(dong)化(hua)過程控(kong)制環節。按(an)照運動(dong)方式分(fen)(fen)為(wei)：角行程、直(zhi)行程和多轉式。以AC交流(liu)電(dia🍌n)(dian)(dian)或(huo)DC直(zhi)流(liu)電(dian)(dian)(dian)為(wei)驅動(dong)能源；根據動(dong)作方式分(fen)(fen)為(wei)兩大類（電(dian)(dian)(dian)動(dong)開關型和電(dian)(dian)(dian)動(dong)調節型）。