Zeměměřické a astronomické přístroje používané na území ČR od 16. do konce 20. století
tachymetre – J. & J. Frič
The manufacturer's name on the device
- Josef & Jan Frič
- VÚGTK: S0053
- Owner: Národní technické muzeum
- Manufacturer: J. & J. Frič
- Made: 01.01.1933
- Length: 258 mm
- Width: 165 mm
- Height: 327 mm
- Weight: 6400 g
- S/N: 5819
- cross hairs:
-
- telescope type: flip over
- tripod connection: tribrach
- type of clamp: peripheral clamp
- 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: 255 mm
- telescope diameter: 45 mm
- minimum telescope focusing distance: 4800 mm
- telescope magnification: 25
- type of optical plummet: none
- compass: none
- horizontal circle diameter: 150 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: circle clamp
- vertical circle: yes
- segment of the vertical circle: no
- vertical circle diameter: 125 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: 70 mm
- bubble length of the cross level/level parallel with line of collimation: 17 mm
- length of the cross level/level perpendicular with line of collimation: 70 mm
- altitude buble: no
- leveling vial: yes
- length of leveling vial: 85 mm
- bubble length of the leveling vial: 25 mm
- striding level: no
- sensitivity of the striding level or leveling vial: 20 "
- sensitivity of the alidade level: 60" "
- designed for work: basic work
