ΔU (U2 U2, () cosφ2.
U2 , .
U2=U1(ω2/ω1)=U1/K
U2
Δu=[(U2- U2)/ U2 ]100%. (6.1)
.
(. 6.1) . , .
ABC , U2. , , ACD (. 6.2).
CD AD % U1 m n ()
m=(CD/U1)100%; n=(AD/U1)100%. (6.2)
AD ( . 6.1)
A2 = OD2 + AD2 = ( + CD)2 + AD2
. 6.1. ,
. 6.2. ,
, ,
U21=(U2+mU1/100)2+(nU1/100)2,
U'2=√U21-(n U1/100) 2-mU1/100.
, , U1= KU2 U'2 = KU2 ( ):
Δu=[(U2- U2)/ U2 ]100=[(KU2- KU2)/ KU2 ]100==[(U1- U'2)/ U1]100
=(1- U'2/ U1 )100%.
U'2 ,
, , . ,
m n. u u .
. 6.2 ABC ADC. BE || CD ( AD) BF || AD. BFC £ ,
CD = CF + FD = CF + BE = cosφ2 + AB sinφ 2
AD = AE DE = AE BF = AB cosφ2 sinφ2.
A , U1 , , . .
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ua=(BC/U1)100% uP=(AB/U1)100%
, (6.2),
Δu=m+n2/200= ua cosφ2+ uP sinφ2+(uP sinφ2 - ua cosφ2)2/200.
φ2 I2 U2 . , sinφ2, .
Δu=ua cosφ2 uP sinφ2+(uP sinφ2 ua cosφ2)2/200. (6.4)
sinφ2 , .
, .
, . . cos φ2= 1 , , sin φ2= 0,
Δu=ua +u2P/200.
uP <5% (6.4) ,
Δu=ua cosφ2 uP sinφ2 (6.5)
( ) Δu=ua.
6.1. cos φ2 = 0,8, ua = 2,4% uP = 5% ( ).
.
6.2. Δu , cos φ2, = = 0,7, ua = 4% uP = 4,5%.
:
6.2 , φ2 .
, I2. , , .
uP=(I2ω2DCPΔKP)/806eωH0
, I2, , uP = I2.
ua=ua1+ua2=(I1r1100)/U1+(I2r2100)/U2
I1 I2 ω2/ω1 r1 r2, , U2,
. . , .
(6.4) ,. . (6.5), , ua uP I2, Δu
Δu = I2.