Zeměměřické a astronomické přístroje používané na území ČR od 16. do konce 20. století
Instruments
Manufacturers
About project
instruments
tachymetre
Dahlta 020
manufacturers
Carl Zeiss Jena
Dahlta 020
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Dahlta 020
Description
The manufacturer's name on the device
Carl Zeiss Jena
Interesting construction features
Information about the use of device
Information about the device condition
Basic data
VÚGTK:
S0092
Owner:
Národní technické muzeum
Manufacturer:
Carl Zeiss Jena
Made:
01.01.1950
Length:
210
mm
Width:
153
mm
Height:
277
mm
Weight:
4430
g
S/N:
102009
Technical parameters
cross hairs:
telescope type:
flip over
tripod connection:
tribrach
type of clamp:
clamp on the axis
compensator:
no
unite:
gon
distance meter type:
optical
construction of the distance meter:
integrated
autoreduction of the length:
yes
view in the telescope:
erected
variable telescope length:
no
telescope length with retracted eyepiece:
210
mm
telescope diameter:
40
mm
minimum telescope focusing distance:
3100
mm
telescope magnification:
25
type of optical plummet:
none
compass:
none
horizontal circle diameter:
115
mm
main reading scale of the horizontal circle:
reading microscope
number of reading scales of the horizontal circle:
1
the smallest segment of the horizontal circle:
1'
setting the horizontal circle to zero:
circle clamp
vertical circle:
yes
segment of the vertical circle:
no
vertical circle diameter:
125
mm
main reading scale of the vertical circle:
reading microscope
number of reading scales of the vertical circle:
1
the smallest segment of the vertical circle:
1'
cross level:
yes
length of the cross level/level perpendicular with line of collimation:
70
mm
bubble length of the cross level/level perpendicular with line of collimation:
20
mm
altitude buble:
yes
lenght of the altitude level:
70
mm
leveling vial:
no
striding level:
no
sensitivity of the alidade level:
30
"
designed for work:
basic work