Review article

Measurement Systems and Vertical Circle Calibration Methods for Geodetic Instruments

Luka Družeić orcid.org/0009-0009-8375-1654 ; Faculty of Geodesy, University of Zagreb, Zagreb, Croatia *
Đuro Barković orcid.org/0000-0003-3382-253X ; Faculty of Geodesy, University of Zagreb, Zagreb, Croatia *
Mladen Zrinjski orcid.org/0000-0003-0834-6009 ; Faculty of Geodesy, University of Zagreb, Zagreb, Croatia *
Sergej Baričević ; Faculty of Geodesy, University of Zagreb, Zagreb, Croatia *

* Corresponding author.

Abstract

Vertical circle calibration for geodetic instruments is essential for ensuring the accuracy of vertical angle measurements in various geodetic applications. This paper presents an overview of the developed measurement systems, methods and comparator constructions, the calibration processes and the main sources of uncertainty affecting calibration accuracy. An analysis and comparison of key comparator parameters were conducted, including expanded uncertainties, calibration ranges and the applied calibration methods.

Keywords

vertical circle; total station; calibration; angle encoder; autocollimator

Hrčak ID:

332834

URI

https://hrcak.srce.hr/332834

Publication date:

30.3.2025.

Article data in other languages: croatian

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