:
: 25 .
. 4091/1 () ..
, . () ..
_____ 2015.
-
3
4
.. 8
15
.18
25
500 26
50 27
200. 28
텅.. 29
.. 30
25
1)
2)f.=4.3
3)P~=25 ( )
4)R=75 ρ
5) = 0.90
6)ŋ=0,85 ( )
7)∆f=50÷15000 ( 2%)
8)Δf/f=10-6
9) ≤50
1 AG500KGZ (4.3) 200, R=50 .
2 Vch-PP50Wt 4.3 200 25(50).R=50 .
1000. 50 . 50 1000 .
-. , .
.
3 .
8 . - , , .
U0 u0 (t) = U0cos(ωt+φ) . U(t) :
U(t) = U0 + kA e(t), (1.1)
U0 - ( ); e(t) - , , ( ); kA - , ( ).
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- :
u(t) = [U0 + kA e(t)] cos(ω0t+φ). (1.2)
- , ( ):
e(t) = E cos(´Ωt+Θ), (1.3)
- , ´Ω - ; Θ - .
, . :
u(t) = [U0 + kA E cos´Ωt] cosω0t = U0 [1+ MAcos´Ωt] cosω0t, (1.4)
A = /U0 - ( - ).
- (1.4):
u(t) =U0 cosω0t + U0MAcos´Ωt cosω0t = U0 cosω0t + (U0 MA/2) cos(ω0 - ´Ω)t + (U0 MA/2) cos(ω0 + ´Ω)t. (1.5)
(1.5) , - . , ω0, ω0 U0.
, (ω0 - ´Ω) (ω0 + ´Ω) , , . , U0 MA/2 ω0 , - ´Ω. , Δω, - ´Ω, Δω =2´Ω.
u0(t), (t) - u(t) 1.1.
. 1.1 :
) ();
) ();
) - ()
(A = 0) - ω0. A< 1 UMAX = U0(1 + MA) UMIN = U0(1 - MA).
, A
A = (UMAX - UMIN)/(UMAX + UMIN). (1.6)
A>1 , . .* ...
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-11.
-11
:
11
1= 100 ( )
2= 250
Fmax= 30
Ea= 15
Ec2= 2
U=22 I= 320 ( 460)
Eg0=80
S= 205 / S=100 / D = 0.005
900
ʎ0=0.318 ʎ1=0.5 ƀ1=0.5 m=0.934
, :
=780, 120, 7.
, =220.
, 1- =2
, 2- =4
