1) . , . (). ( ). , . , ( ).
2) , , . , , . ( ), (). , , . (, ). . .
3) ( ) , . (, ). (, ). ( ) . , .
, , , , , .
, , .
, ( ).
.
1)
-
|
|
-
-
-
2)
-
- (, , , )
1) .
, , .
.
.
2) , () () . ().
.
/\x=x-xn
&x=/\x/x*100%
Vx=/\x/xn*100%
Xn=|xmax-xmin|
:
1).=k=>|Vx|<=k,%
1
1 .=0,2 0200
2 .=0.2/0.1 0400
T=70C
&T1, &T2
2
. 0.1/0.05
(010)
(010)
(0100)
(01)
1=5
2=20
&1,&2
|vI|=c+d(Ik/I-1)
|I1|=0.1+0.005*(10/5-1)=0.15%
|I2|=0.1+0,005*(100/20-1)=0.3%
3
.=2.0
(050)
I,A | /\I,A | &I,% | VI,% |
1A | . 2,5 | 2% |
/\I=f(I)
VI=f(I)
&I=f(I)
VI=2%
/\I=VI*In/100%=2*50/100=1A
&I=/\I/I*100%
4
.=1/0.5
(01000)
R,O /\R,Om &R,%
0 5 .
100 5.5 5,5
200 6 3
400 7 1,75
500 7.5 1,5
600 8 1,33
800 9 1,125
1000 10 1
&R=c+d(Rk/k-1)=1+0.5(1000/R-1)
/\R=&R*R/100%
/\R(0)=.*0/100%
0.5%1000
1-
2-
3-
4-
5-
1)
x=const, y=const
y , .
:
1) 0=const. (. a)
2) (=const, y=const) (. )
3)0=const, y0=const
4) 1.3 .
, (. ), y=f(x) .
.
2) S - .
S=/\y//\x (/\x->0)
3) (/\x) .
.
|
|
4) ѻ - , .
=1/S=/\x//\y
5) () . .
6) » .
.
n//\t (110 4)
7) .
- , , .
.
- . . .
- . .
1)
- /\x
- &x
- Vx
2)
-
- &
- V
3)
-
-
- ()
4)
-
-
- ()
5)
-
-
6)
-
-
. x
/*100%
/n*100%
.=0,5 U=(025)B
.=1.0 U=(015)B
.=1.5 U=(07.5)B
.=1.0 U=(010)B
U=8B
&U-?
&U=/\U/U*100%
/\U=k.t*Un/100%
/\U1=0.5*25/100=0.125B
&U(0.5)=0.125/8*100=1.56%
/\U2=1*15/100=0.15B
&U(1.0)=0.15*8/100%=1.87%
/\U4=1*10/100=0.1B
&U(1.0)=0.1*8/100=1.25%