Zeměměřické a astronomické přístroje používané na území ČR od 16. do konce 20. století
Instruments
Manufacturers
About project
instruments
theodolite
manufacturers
Fennel
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theodolite – Fennel
Description
The manufacturer's name on the device
Otto Fennel Söhne in Cassel D.R.P.
N
o
122901
Interesting construction features
Information about the use of device
Information about the device condition
Basic data
VÚGTK:
S0137
Owner:
Hornicko-geologická fakulta, VŠB-TUO
Manufacturer:
Fennel
Made:
01.01.1900
Length:
375
mm
Width:
215
mm
Height:
290
mm
Weight:
6930
g
S/N:
5358; D.R.P. 122901
Technical parameters
cross hairs:
telescope type:
reversible
tripod connection:
tribrach
type of clamp:
clamp on the axis
compensator:
no
unite:
° ' "
the possibility of determining the elevation:
yes
distance meter type:
optical
construction of the distance meter:
integrated
view in the telescope:
inverted
variable telescope length:
yes
telescope length with retracted eyepiece:
375
mm
telescope length with extended eyepiece:
415
mm
telescope diameter:
35
mm
minimum telescope focusing distance:
3200
mm
telescope magnification:
22
type of optical plummet:
none
compass:
none
horizontal circle diameter:
170
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:
1'
setting the horizontal circle to zero:
repeating
vertical circle:
no
segment of the vertical circle:
no
cross level:
yes
length of the cross level/level parallel with line of collimation:
65
mm
bubble length of the cross level/level parallel with line of collimation:
15
mm
length of the cross level/level perpendicular with line of collimation:
65
mm
bubble length of the cross level/level perpendicular with line of collimation:
15
mm
leveling vial:
yes
length of leveling vial:
100
mm
bubble length of the leveling vial:
30
mm
striding level:
no
altitude buble:
no
sensitivity of the striding level or leveling vial:
35
"
sensitivity of the alidade level:
120
"
designed for work:
basic work