Horizontal angle of the horizontal angle measuring principle means through the space between the two dihedral theodolite direction line intersecting a vertical plane taken sandwiched production, the angle is 0 ° ~ 360 °. Space two straight lines intersect at points OA and OB O theodolite, the point A, O, B in the vertical direction of the projection onto the horizontal plane, to give the corresponding projected point A ', O', B ', horizontal O'A' and O ' B 'through the angle β is the angle between the vertical plane made by the two-direction line, i.e. a horizontal angle. Independent of the size of the horizontal with the ground elevation points. DT-02L Telescope Image Erect Magnification 30x Effective aperture 45mm Resolution 3 "Field of view 1 ° 30 'Minimum sight distance 1.4m 100 by a constant line of sight Additive constant 0 horizon tube length 157mm goniometer part goniometer way absolute encoder encoder disk diameter 79mm Minimum reading a "precision 2" diameter detection method for the vertical angle for horizontal diameter vial vial 30 "/ 2mm circular level 8 '/ 2mm automatic vertical compensation system liquid electronic sensors: 4' operating range ± 3 'precision liquid electronic sensors: a "laser plummet (DT-02L / 02CL / 02NL / 02LN applicable) Wavelength 635nm power 0.5mW focal point focusing mode 120m effective range of physical characteristics Ambient temperature -20 ℃ ~ + 45 ℃ onboard battery rechargeable Ni - MH battery / AA batteries continuous working time of 10 hours Application: mainly used in the manufacture of large ships; Small dam dam displacement measurement; window body correction heavy machinery, mechanical deformation measurement ; harbor, bridge engineering; large pipes, laying of pipelines; tunnels, underground construction; high-rise buildings, large tower; airframe installation; vertical measurement zenith direction; Leveling Applications: Features: ◆ laser spot except through the eyepiece can be seen directly hit the laser spot on the target, the laser pointing and simultaneous visual observation telescope theodolite corrected visual observation through a telescope, in the field of view can be seen clearly in the laser beam spot. ◆ Laser Brightness can be adjusted to point big point laser power adjustment range, about 0.03mw-1mw theodolite hardware can be adapted for use in different environments, based on the use of ambient light intensity by adjusting potentiometer and visual observation through a telescope, in the field of view can always be seen clearly laser beam spot. ◆ standard communication interface allows easy connection took over book. ◆ integrated lasers and laser pointing the telescope integrated part of the design of the instrument as a whole looks more harmonious appearance. ◆ Optional laser on Point is conventionally formulated optical plummet, optional laser plummet electronic theodolite |. Jinke instrumentation (certified) | theodolite provided by Qingdao Branch of the Instrument Co., Ltd. Qingdao Branch of the Instrument Co., Ltd. (www.. qdjk17.com) is Qingdao, a leader in analytical instruments, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Branch of the Instrument leadership with the staff warmly welcome all For more information, negotiate, create Jinke instrument a better future.