parameters. Press [F4] to return to
e measure function
th
※
1) The way to input prism const
※
2) T
a
er to “2.7 INPUTTING MODE’
he scope of prism constant
：
～
+99mm
nt please ref
-99mm
, Step Length 0.1mm
3.2.3 Set Atmosphere Data
R
a ically correct t
ffect of atmosphere refraction and the earth
c
when calculating the h
l distanc
re refraction and the earth curvature are done by the formulas as
f
C
：
cos
α
(K-2) / 2Re]
C
* cos
α
(1-K) / 2Re]
efraction modules:
The instrument will autom
urvature
t
he e
orizonta
e and the height differentia.
The correction for atmosphe
ollows:
orrected Horizontal Distance
D=S * [cos
α
+ sin
α
* S *
orrected Height Differentia
：
H= S * [sin
α
+ cos
α
* S
If the correction of atmosphere refraction and the earth curvature is neglected, the
c
re
:
D=S
·
cos
α
α
(
或β
)
The Vertical Angle Calculated From Horizontal
…
Distance
modulus of this instrument has been set as: K=0.14. It also can
ERATIONAL STEPS
OPERATION
DISPLAY
alculation formula of horizontal distance and the height differentia a
H=S
·
sin
α
In formula:
K=0.14
……………………
Atmosphere Refraction Modulus
………………
Re=6370 km
The Earth Curvature Radius
………………...
Plane (Vertical Angle)
…………………
S
…….
Oblique
NOTE
:
The atmosphere refraction
be set shut
:
(0 VALUE)
OP
①
In EDM Se
en, press
[F1] (A
tmospheric
correction function.
[F1]
EDM Mode
：
Tracking
【
EDM Settings
】
Prism
：
30.0mm
ttings scre
tmos) to enter a
ATMOS GRID SET
↓
【
Atmosphere Data
】
Retr..Corr
：
0.14
Temp
：
20
℃
②
The current settings displays on
the screen.
Pressure
：
1013.2 hPa
0 PPM
Atmos PPM
：
BACK PPM=0 SET
26
Summary of Contents for STS-750
Page 6: ...6...
