5.
.
:
W(s) = Ts T ( ).
.
, :
= Td(t)/dt
, (t) .
.
, . , . , :
;
, , ;
.
, . , , , .
, , "" . - , . :
W(s) = T1s/(T2s + 1), T1 ( ), T2 . T2, .. , T2s , :
W(s) = T1s/(T2s + 1) ≈ T1s.
. , " " :
ω = 1/T2.
, , .
.
h(t) = L-1[W(s)/s] = L-1[T] = Tδ(t)
, .
.
w(t) = L-1[W(s)] = L-1[Ts] = Tdδ(t)/dt
, , () . () :
|
|
(t) = t (s) = 1/s2.
(t) = L-1[W(s)(s)] = L-1[Ts/s2] = L-1[T/s] = T1(t).
, , 0 T.
.
. 5.1. , .
W(jω) = Tjω = 0 + Tωj
A(ω) = Tω
φ(ω) = arctg(Tω/0) arctg(∞) = π/2
L(ω) = 20lg[A(ω)] = 20lg(Tω).
, .
I-
.
I- :
W(s) = K(Ts + 1) K ; T .