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40.在步進電動機驅動實驗時,若使用四相30個凸極的可變磁阻型步進電動機,則其步進角為何? (A)3度 (B)5度 (C)7度 (D)9度
問題詳情
40.在步進電動機驅動實驗時,若使用四相30個凸極的可變磁阻型步進電動機,則其步進角為何?
(A)3度
(B)5度
(C)7度
(D)9度
參考答案
答案:A
統計:A:2,B:0,C:0,D:0,E:0
難度:計算中
上一篇 :
39.關於三相同步電動機之激磁特性(V形曲線)量測實驗,下列敘述何者正確? (A)V形曲線的縱軸為激磁電流、橫軸為電樞電流 (B)負載越重時,電樞電流越小 (C)某一負載下,當激磁電流由很小增加到使電
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19.將布林代數式F(W,X,Y,Z)=Σ(5,12,13,14,15)化簡之後,其 SOP(SumofProduct)最簡式為何? (A) (B) (C) (D)
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