1021 . . . :
- ( ) 1150 ,
- , , , ..
:
1) ( [/]),
2) ( [/]),
3) (f []),
4) λ= /f, [],
5) ( [/]),
6) (I=E*H [/2]).
1) : , , .
2) : , , , , . , , , , .
:
| 1. | 10 100 | 3 30 | - - - - |
| 2. | 1 10 100 1000 10 100 | 30 300 300 3 3 30 | - - - |
| 3. | 1 10 | 30 300 | - () |
| 4. () | 10 100 1 10 1 10 | 300 3 3 30 30 300 | - - - |
:
- < 5
- 5 25
- 25 100
- >100
:
12.1.002-84
2.2.4.1191-03
:
1. 5 20 / () :
= (
) - 2,
- , /;
- , .
2. 20 25 / 10 .
3. 25 / .
4. . .
|
|
|
5. () :
= 8·(
),
- , ;
tE1, t2,...tEn - 1, 2,... n, ;
1, 2,...n- .
8 .
6. 8 /
1) ( ). . . :
R. ≤ λ/2π ≈ λ/6
:
=(I∙L)/(2π∙ξ∙ω∙R2)
H=(I∙L)/(4π∙R2)
I ,
L ,
ξ ,
ω , /
R ,
2) ( )
R. = R. -R.
3) ( )
300 300 , , ..
R.≥ λ/2π
:
=(I∙L)/(2π∙ξ∙ω∙R2∙f∙c )
H=(I∙L)/(4π∙R∙ω∙c)
, /.
.. ():
I=P∙G/ 4∙π∙R2
P ,
R ,
G .
G = K∙S/ λ2
