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Calibration of Field Length Baselines Using Leica AT401 Laser Tracker

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F17%3A00312795" target="_blank" >RIV/68407700:21110/17:00312795 - isvavai.cz</a>

  • Result on the web

    <a href="http://dx.doi.org/10.5593/sgem2017/22/S09.018" target="_blank" >http://dx.doi.org/10.5593/sgem2017/22/S09.018</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.5593/sgem2017/22/S09.018" target="_blank" >10.5593/sgem2017/22/S09.018</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Calibration of Field Length Baselines Using Leica AT401 Laser Tracker

  • Original language description

    The paper reveals proposed techniques and measurement results obtained by employing Leica AT401 laser tracker into processes of calibration of field length geodetic baselines. Firstly, testing of the available laser tracker in Research Institute of Geodesy, Topography and Cartography (RIGTC) is shortly introduced and the development of a user-programmed software ATControl is presented. Secondly, measurement methodologies used for calibrating Czech State Long Distances Meausuring Standard Koštice and National Geodetic Baseline Hvězda are outlined. Finally, results from 20 epochs from Koštice baseline and 6 epochs from Hvězda baseline are evaluated. Leica AT401 proved to be a useable tool for calibrating field length baselines even if many problems with automated target recognition and measuring range occurred. Scale accuracy of the calibration was mainly dependent on temperature gradients and additive constant on the long-term stability of baseline’s points. Accuracy expressed as a standard deviations varied about (0.4-0.6) mm + 0.34 mm/km for both baselines. EURAMET’s research project “Absolute Long Distance Measurement in Air” describes needs for development in this field. Employing laser tracker instruments is one of the new ways how to conventionally maintain field length baselines around the world. Reached accuracy is comparable to outputs of methodology used by Finnish Geospatial Research Institute (FGI) but the whole process with laser tracker Leica AT401 is significantly easier and faster comparing to traditional scale transfers with Kern Mekometer ME5000.

  • Czech name

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

  • OECD FORD branch

    10500 - Earth and related environmental sciences

Result continuities

  • Project

  • Continuities

    S - Specificky vyzkum na vysokych skolach

Others

  • Publication year

    2017

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Article name in the collection

    17th International Multidisciplinary Scientific Geoconference, Conference Proceedings Volume 17, Informatics, Geoinformatics and Remote Sensing Issue 22, Geodesy and Mine Surveying

  • ISBN

    978-619-7408-02-7

  • ISSN

    1314-2704

  • e-ISSN

  • Number of pages

    8

  • Pages from-to

    139-146

  • Publisher name

    International Multidisciplinary Scientific GeoConference SGEM

  • Place of publication

    Sofia

  • Event location

    Albena

  • Event date

    Jun 27, 2017

  • Type of event by nationality

    WRD - Celosvětová akce

  • UT code for WoS article