s1A. , . ' (. ) 1-'
=S − S .
' 1-' .
( 1-) . .
( ) 1- ( ). , .
l = 2d sin2 ν/2,
ν - . h d :
ν = arctg h/d.
lH .
l0 ∆l,
l = (∆l/l0) d.
lK , , , .
, , α , . α = 12∙10-6.
lT = αd (tK - t),
t ; tK . , . , .
,
S( ) = d + lH - lK + lT.
9.2. .
d = 69,738 , δ 1:10000. h = 0,805 . 100 ( 100 ), tK = 180 100,0035 . t = 220.
|
|
.
md = d δ = 69738 (1/10000) ≅7.
lH, lK lT.
ν = arctg (0,805/69,738) = 00 39,7'.
lH = 2⋅ 69,738 ⋅103 sin2 0019,85' = +4,65 .
lK = (0,0035/100) 69,738⋅103 = +2,44 .
lT = 12⋅10-6⋅69,738⋅103 (180 - 220) = -3,35 .
S = 69738 + 4,65 − (+2,44) − 3,35 = 69737 = 69,737.
, , , () , . . .
69,741 . (69,741 69,737) = +0,004 = +4 , (7 . ).