Theodolites | Environmental XPRT

Articles & Whitepapers

  • Potential and limitation of UAV for monitoring subsidence in municipal landfills

    Multitemporal topographic measurements are essential for monitoring municipal landfills for economic and security reasons. Accurate evaluation of the landfill volumes still to exploit and the extent of subsidence occurring in the closed plots are critical parameters in landfill management. A municipal landfill located in central Italy has been imaged by a UAV helicopter able to fly in full ...

News

  • Weihua technical inspection and testing center

    Weihua technical inspection and testing center

    Weihua technical inspection and testing center was established in August, 2004, covers an area of more than 1000㎡. In July, 2007, we were formally recognized through China National Accreditation Service for Conformity Assessment. Inspection report ...

Equipment & Solutions

  • Adjusting Collimator
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    Adjusting Collimator

    The adjusting collimator is suitable for testing and adjusting geodetic instruments, especially for levels and theodolites. The adjusting collimator consists of the collimator telescope (focal length 600 mm, objective aperture 60 mm) and a robust V-block bracket of cast iron. Rigidly attached to the telescope barrel are two annular rings ground to high precision. The barrel also rests on ...