GEOGRAPHICAL SURVEY OFFICE OF SWEDEN NO A 34 
23 
A7 Autograph 
dbx = *N “ =% 
1 2 
s, = Vs 2 + s 
bx v \ \ 
2 
2 
( 19 ) 
dbz = dz^- dz^ 
z, 
'2 
2 
AS Autograph. 
dbx = 80.000 nan + 2(x T - x., ) 
^1 '2 
o / 2 
s, = 2 ,/s + s 
bx v ^ 
2 
2 
<№y = 2(y - y ) 
1 2 
2 
2 
( 20 ) 
dZ]_ - dz 2 
+ s 
The values x. T , x T , y. T , and ya for the AS (Form AS: 3) are given on the 
1 2 1 1 2 
A8-scale, where one unit is equivalent to 2 mm and one division on the drum 
signifies 0.02 mm. We must therefore use the coefficient 2 in formula (20) 
for computing the real values. The other formulas, for example (9), give the 
real values directly. 
1.3. The mechanical adjustment. 
The results from Forms A7s3> A8:3> and Section 1.2. are useful for mechanical 
adjustments. At first we must determine which elements are to be adjusted 
according to 3.1. Thereafter the adjustment can be performed according to 
the following tables.