(5.1) :
I(θ) = 2I (1 + cos ) = 4I cos2
= d sin θ
:
2 I (1 + cos ) = 4 I cos2 = 4I cos2 Þ
Þ I(θ) = (5.2) ( N =2)
5.3.3.
N, (5.2)
I(θ)= I0 (5.2. ) |
(5.2. ) , N , φ.
( ), . , :
= R sin = R sin
R A :
A =A0
(5.2. ). :
I = N 2 I0
φ = 2π m r . = m λ, m .
N-1 (
= m* π, m* = 1, 2, 3,... N-1 φ = 2π).
N . .
, , . N ,
φ+1,-1 = , =
. 6
. . , .
6.1 - (6.1.1.). (6.1.2.)
6.1.1.
, :
1. .
2. , . .
:
(,t) = · f (α)· · dS.
.
6.1.2.
, (.. ).
= 1 - 2 + 3 4 +. N
m = (m-1 + m+1) , m:
= (1 - N) N
= (1 + N) N.
N 1
= 1 I = I1.
: I 1 = 4 I 0.
, , ( ), .
|
|
6.2 .
6.2.1.
, ( λ) . , ( ∠ θ) .
:
sin θ = (2 m + 1) (6.1)
- sin θ = m λ, (6.2) m = 1, 2, 3..
δ = , - . : sin θ =1 Þ mmax = .
, ,
I θ = I 0 , (6.3)
I 0 .
1) θ = 0 (6.1) , → 0, :
A (0) = A 0; I (0) = I0
2) :
sin = 1 = (2 m +1)
Im, . = I0 / [ (2 m +1)2 ]
3) :
sin = 0
6.2.2.
:
I θ = I 0 · (6.4)
, , .
. .
I (θ).
:
)
d sin θ = m λ (m = 0,1, 2, 3, ) (6.5)
N 2 ;
) ( ) ; = 2 m +1, m= .
=
N -2 .
) sin θ = m λ
= π m* (m*= 1, 2, N -1, N +1, N +2 2 N -1, 2 N +1)
D = = (6.6)
.
D = F , F - .
R
(,) .
R = = mN, (6.7)
m - , N - . N 103.
6.2
6.3.1.
1
, ( ) . .
rm = r + m
, m ( S = Sm - Sm-1 = ).
|
|
m
rm = (6.8)
r = rm m = mmax
, 1 = /2.
m = ,
, .
( 1)
, .
, .
6.3.2.
, ( . )
.
6.3.3.
1. (), , (. - )
2d sin θ = mλ (6.9)
2. - .
3. .
.
υ2 = υ = φ = (2 m +1) π φ = 2π m
ψ → ω → = υ2
δ = ωo2 = cos Σ
Þ ^ > < α φ q φo β ω ω 2 π ψ (x,t) x k
ℓ δ λ φ ε θ α π υ ν ω τ μ ψ ρ ∙ ΄ z γ σ ℓ
→ ∶ π tg φ ψ → ω → t μ μ εoε ∠
δ = ωo2 = cos(ωt + φo) sin (ωt + φo) sin2
- δt ω = εm Cambria Math ( .)
+ 2δ + ωo2 x = 0, (**) y + + m + . = m
x (t) = Ao - δt cos(ωt + φo) (1.4) δ =
= Ao - δt ω = const
q (t) = q m cos(ωot + φo), ωo2 =
I(t) = = - δ q m - δt cos(ωt + φo) - ω q m - δt sin (ωt + φo),
W(t) = + LI2 - 2δt = L -2δt = W - 2δt
θ = Þ θ =
tg φ o = - (δ → ω) H = E c =
q (t) = q m cos(ωt - ψ) Am 1 cos (ωt - kx) Imax r = m λ Imin
rot = - rot = + div = ρ r = (2 m + 1)