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  • Prism Constants in Survey Targets Explained - Geomatics
    To define what the prism constant is, we must first explain how a prism target works In principle, the target reflector is a piece of glass that bounces off the signal in the same direction it came from The image below shows how the incoming EDM signal is reflected in the same direction it came from
  • Leica Prism Constant Explained - Cody Corporation
    The difference between a Leica prism quoted offset and all other prism offsets is the way the Kr value is handled Leica’s prism constant system is defined with reference to its standard prism sets (the GPH1 + GPR1 ) which has a Kr value equal to -34 4 mm
  • Bohnenstingl Special Surveying Accessories. - RPLS. com
    Topcon and Trimble (formerly Geodimeter, Spectra Precision, Zeiss) now all define the prism constant as an cor-rection, that is, as a correction of the measured distance based on the physical and design charac-teristics of the prism or reflector in the instrument
  • Accuracy analysis and Calibration of Total Station based on . . .
    Reflectorless EDM technology uses phase measuring or pulsed lasers to measure targets of a reflective and non-reflective nature Reflectorless distance measurement provides rapid measurement by saving time and labour for surveyors
  • Leica Prism Constant - Townsquare Interactive
    The difference in Leica prisms and third-party prisms for the prism offset is how the value for K r is handled From the explanation above the prism constant by design for a Leica Geosystems standard
  • Prism Constants - UNSW Sydney
    The prism constant is a distance offset that needs to be applied to measurements to get the correct distance The prism constant is entered into total station settings Trimble, Sokkia, Topcon, Pentax, Foif and Nikon use absolute offests Lieca references the offsets to their “standard” prisms, the GPH1, GPR121 and GPR111
  • Prism constant - Turning Point Systems Group
    The prism constant is an important characteristic of the reflector This constant, always given in [mm], is specific to the model and physically represents the constant difference between the measured value and the "exact" value


















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