[理工] 自控問題
題目是這樣的,真的還是不太懂到底要求甚麼
if the following transfer finction is excited with an input signal of the from:
y(t) = 4.4 sin(400t)
25
calxculate at the following ipuut condition T(s)= __________
s
( ___ +1)
200
5000 /
我先把他化成G(jw) = __________ / -1 w
_________ / 0 - tan (_______)
/ 2 / 200
ˋ/ 4000 + w /____________________________
(a) magnitude in dB
求大小值的dB
5000
20log ________ = 27.5 dB = =??
209.8
(b) magnitude as gain
大小的gain意思是 大小值乘上 輸入的4.4倍嗎
(c) phase(angle in degrees)
相位應該就沒甚麼問題
w代400進去 得 63.4度
(d) steady-state,sinusoidal output
穩態就比較常見了
y(t) = 104 sin (400t+63度)
不知道對不對耶.....請各位幫幫忙囉!!
有些比較智障的大錯誤請用力鞭>.<
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