Zeměměřické a astronomické přístroje používané na území ČR od 16. do konce 20. století
Instruments
Manufacturers
About project
instruments
tachymetre
manufacturers
Feinmess Dresden
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tachymetre – Feinmess Dresden
Description
The manufacturer's name on the device
Optik Feinmess Dresden VEB
Interesting construction features
Information about the use of device
Information about the device condition
Basic data
VÚGTK:
S0120
Owner:
Vysoké učení technické v Brně
Manufacturer:
Feinmess Dresden
Made:
01.01.1949
Length:
240
mm
Width:
185
mm
Height:
316
mm
Weight:
4885
g
S/N:
23465
Technical parameters
cross hairs:
telescope type:
revolved
tripod connection:
tribrach
type of clamp:
clamp on the axis
compensator:
no
unite:
° ' "
distance meter type:
optical
construction of the distance meter:
integrated
autoreduction of the length:
no
view in the telescope:
inverted
variable telescope length:
no
telescope length with retracted eyepiece:
245
mm
telescope diameter:
40
mm
minimum telescope focusing distance:
3000
mm
telescope magnification:
28
type of optical plummet:
none
compass:
none
horizontal circle diameter:
145
mm
main reading scale of the horizontal circle:
vernier
number of reading scales of the horizontal circle:
2
the smallest segment of the horizontal circle:
20"
setting the horizontal circle to zero:
repeating
vertical circle:
yes
segment of the vertical circle:
no
vertical circle diameter:
115
mm
main reading scale of the vertical circle:
vernier
number of reading scales of the vertical circle:
2
the smallest segment of the vertical circle:
20"
cross level:
yes
length of the cross level/level parallel with line of collimation:
60
mm
bubble length of the cross level/level parallel with line of collimation:
7
mm
length of the cross level/level perpendicular with line of collimation:
60
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
bubble length of the altitude level:
13
mm
leveling vial:
yes
length of leveling vial:
85
mm
bubble length of the leveling vial:
27
mm
striding level:
no
sensitivity of the alidade level:
50
"
sensitivity of the altitude level:
15
"
designed for work:
basic work