, 6, ( , ) ( , , Σ, , ).
: , .
, 5.1, , , .
. , , R 1, R 2, R 0 ( ); R 0 . , V . R 2 R 0 V; 1. U V.
Δ U , . (. ).
Ux = U Δ U. (5.1)
. 5.1 , , , , R 2 R 0.
U 0 R 0; 2. , , I = U 0/ R 0.
d I =d U 0 + d R 0,
d U 0 = , d U 0 = (D U 0 / U 0) 100%, D U 0 , , dR0 ( ).
D I = I *d I /100.
.
, R 2 R 0 Pm = UI. U I .
dP = d U + d I,
dU, d I , .
D Pm = Pm *d Pm /100.
|
|
Pm = Pm Δ Pm.
. . . 5.2, , , , (. 5.1), :
; ( 1-5) ; ;
S, ;
, , .
, - ( ), , ( ).
. ( ) n ( ) . .
:
)
n ; ( );
) , , ;
)
;
)
,
:
Ui, | , | ρ i, | S2 [ U ], 2 | 2 | |
n | |||||
= | = |
) , , ,
,
tp (f) , P f. f = n 1; P . . .
P | f | ||||||||
0,90 | 2,13 | 2,02 | 1,94 | 1,86 | 1,81 | 1,75 | 1,72 | 1,70 | 1,65 |
0,95 | 2,77 | 2,57 | 2,45 | 2,31 | 2,23 | 2,13 | 2,09 | 2,04 | 1,96 |
0,98 | 3,75 | 3,36 | 3,14 | 2,90 | 2,76 | 2,60 | 2,53 | 2,46 | 2,33 |
30 , .
|
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)
; P = .
, , .
. .
( ) n ( ) 1 2 (.5.2). . U 1 i U 2 i; 1 2 , i = 1, 2, n.
) , . .
, (5.2)
- ,
- , . , , .
. (5.2)
(5.3)
, f = 2 n -2 (5.3) .
, = ,
kp (f) , f = 2 n -2 .