Zeměměřické a astronomické přístroje používané na území ČR od 16. do konce 20. století
tachymetre – Sprenger
The manufacturer's name on the device
- Ed. Sprenger, Berlin
- VÚGTK: S0138
- Owner: Hornicko-geologická fakulta, VŠB-TUO
- Manufacturer: Sprenger
- Made: 01.01.1895
- Length: 294 mm
- Width: 143 mm
- Height: 243 mm
- Weight: 5391 g
- S/N: 2529
- cross hairs:
-
- telescope type: reversible
- 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: yes
- telescope length with retracted eyepiece: 294 mm
- telescope length with extended eyepiece: 338 mm
- telescope diameter: 25 mm
- minimum telescope focusing distance: 2600 mm
- telescope magnification: 20
- type of optical plummet: none
- compass: integrated
- compass design: circle
- compass diameter: 70 mm
- smallest division of the compass scale: 1´
- horizontal circle diameter: 115 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: yes
- segment's range of vertical circle: 100
- vertical circle diameter: 110 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: 1'
- cross level: no
- length of the cross level/level parallel with line of collimation: 97 mm
- bubble length of the cross level/level parallel with line of collimation: 20 mm
- altitude buble: no
- leveling vial: yes
- length of leveling vial: 143 mm
- bubble length of the leveling vial: 30 mm
- striding level: no
- sensitivity of the striding level or leveling vial: 12 "
- sensitivity of the alidade level: 70 "
- designed for work: basic work
