f=1 7-16 (3-13) U1 = 8. f . ջ, Uf 1.
1
| F. | 103 | 2103 | 5103 | 104 | 2104 | 5104 | 105 | ||
| Uf, | |||||||||
| ∆, | |||||||||
| δ,. % | |||||||||
| Δ, |
∆ δ :
∆ () = Uf - U1,
δ (%) = 100(Uf - U1) / U1.
: U1 1,
Uf .
, , , , 1 12,2%. 1.
Uf = (f).
3. ʻ
f=1, 10. 7-16 (3-13) U=8. 3, 1, 0,3, 0,1, 0,03, 0,01, U 2. : () = 20 log (U / U)
, (.. ) 10 (. .2), .2 δ() :δ() =
2
| , | 0,3 | 0,1 | 0,03 | 0,01 | |||
| , | 0,0 | -10 | -20 | -30 | -40 | -50 | -60 |
| U , | 8,0 | ||||||
| , | |||||||
| δ, |
4.
3-102
3-33, , f ≈ 2000 Y . .
1-55 ջ ( 1-65 - ػ). ջ f 3-102. , .
|
|
|
3-102 f =2. f 3-33, ( ), f f, ջ Y. 3-33 f0. (∆) (δ) f =2000:
∆() = f f =2000 f, δ(%) = (∆ / f)100%
f f , () . 3-102:
f = 1,0, 3, 4,0 , f 3-33 2 .
f , .
fNo = f N,
: No , f,
N - , f.
: f = f N / N.
f (∆,,δ) 3.
3
| 3-102 F, . | 1,0 | 2,0 | 3,0 | 4,0 |
| f 3-33, . | ||||
| N / N | 1/1 | |||
| f, . | ||||
| ∆, | ||||
| δ, % |
1. .
2. ?
3. ?.
4. .
5. .
6. .
7. ?
8. ?
4
: 1. .
2. .
3. .
1. 4-42
2. 3-13 (7-16)
3. 1-65
4. 3-33
1. .
, 5-10 . 4-42, :
|
|
|
- - ˻;
- -% - ʻ;
- % ʻ
;
- 0 0;
- V ( =1,0 0,1);
- ʻ.
