Product Manual

Table Of Contents
p prism constant [m]
Horizontal distance
HD
= Y - A · X ·
Y
HD Horizontal distance [m]
Y SD * |sinζ|
X SD * cosζ
A
(1 - k/2)/R = 1.47 * 10
-7
[m
-1
]
ζ = Vertical circle reading
k = 0.13 (mean refraction coefficient)
R = 6.378 * 10
6
m (radius of the earth)
Height difference
VD
= X
+ B · Y
2
VD Height difference [m]
Y SD * |sinζ|
X SD * cosζ
B
(1 - k)/2R = 6.83 * 10
-8
[m
-1
]
ζ = Vertical circle reading
k = 0.13 (mean refraction coefficient)
R = 6.378 * 10
6
m (radius of the earth)
Technical Data 135