VE 
  
  
  
  
  
  
  
  
  
  
Na AF i Ng RE Ae 
aad iie omo etlam ptit itd 
has iB oco AR ci 
  
      
  
    
    
   
  
    
  
  
   
   
    
  
     
  
   
  
  
  
  
  
  
    
   
   
  
    
8 
It is assumed that F and G' do not coincide, the. distance between both being the 
nents e, and e, respectively. We then have: Comp 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
y-inclination x-inclination 
(Breitenfehler) (x-Schiefe) 
S ^ i S 
; | 
J ! | X 
| 
% S 8 A 
Y) S 6 
ff FAN 5S fhe À 
6 utt |! Re 
4 A i | 
x 4 y v Xi 
EN 
Fig. 10 : Fig. 11 
X 299 — V M 
óx — e, sin y — e, | óx — eX (cosy —1) — d —1] 
4 yn, 4 / 
283 —y at x A 
óy — e, (cosy —1) — e, ( —) óy — e. siny = e, 
SAX UL / : l, 
with I, = Vx2 + (23 — y)2. 
The effect on the projection can be demonstrated again in a graph: 
  
  
  
eu? L ^ 
i — el rie 
wa m 1 
| 1 t li 
| f - Il 1 
FA | | li 
| 4 "| | 
|| | | | | 
I4 i I | 
| | | | | | A 
| zz, | | J —— À 
[fe — = from HE HH —- b ——I-—cu 
| | Ir | | 
| | {| | 
| | + 
| | | : 
[i [. Es. ei | 
Peli 
AZ 
AH ———— 7] | H—— + — eme ES TE 
| rr 
e | 
| | de 
— lm um RR ].--— "meme 0e me TU 
1mm 
t 
Fig. 12 Fig. 13 
For the gimbal axis above the projection centre the primary axis is in the ine 
of the swinging girder which depends upon y. The errors óx and dy must be vos 
into the coordinate system of the gimbal axis (fig. 1). If óx and dy refer to the vals 
according to equations (1a) and óx* and óy* denote the actual values, we get 
  
For the gin 
ginbal axis belc 
the projectioi 
in connection W 
X 
[210.79 
l, 
20 
Ans. — 
+ (n + 1) 
ls 
tar Cat 
Z2 
  
Àn attempt 
(rect, measure 
experiment faile 
Conclusions: 
The factory 
Hine (both pass 
tn be eliminates 
ü&mor in inter 
Fine can be cor 
‘points after an 
In general, 1 
ll axis is erron 
ay help the an 
(int measureme 
11g. 7, 8 or 9. 
fip. 7, 8 or 9 
Centre;