作者XUEBILEN (4/30视小工科之夜)
看板NTUAviation
标题Re: 马达效率估算
时间Sun Apr 25 01:40:48 2004
※ 引述《HomeboyWu (William)》之铭言：
: ※ 引述《XUEBILEN (4/30视小工科之夜)》之铭言：
: : 我说马达无负载时....啃清楚
: 那更扯啦
: 无负载就没有输出扭力嘛
: 所有扭力都在加速转子(没摩擦力)
: 然後就直接加到空转转速
: 那就是从头到尾都没扭力
: 又反比罗？
Basic Operational Principles of DC motors
T=K*D*I
T:torque
K:proportional constant
D:magnetic flux
I:armature current
E=K*D*W
E:back emf(when the conductor moves in the magnetic field,a voltage is
generated across its terminals which is the back emf)
W:the shaft velocity (rad/sec) of the motor
叙述:The torque developed on the motor shaft is directly proportional
to the field flux and the armature current.
Back emf is proportional to the shaft velocity,tends to oppose the current
flow.
你自己判断是不是反比...别劈头就说别人在扯
(你说话小心点我并没有要跟你呛声,但是看到你的回po让人血压上升)
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◆ From: 61.217.123.162
※ 编辑: XUEBILEN 来自: 61.217.123.162 (04/25 01:49)
※ 编辑: XUEBILEN 来自: 61.217.123.162 (04/25 02:34)