A New Modeling Approach for a Priori Uncertainties of Laser Tracker Angle Measurements

Manwiller, Peter E.

doi:10.1061/jsued2.sueng-1433

A New Modeling Approach for a Priori Uncertainties of Laser Tracker Angle Measurements

Journal Article · Mon Jun 26 00:00:00 EDT 2023 · Journal of Surveying Engineering

DOI:https://doi.org/10.1061/jsued2.sueng-1433· OSTI ID:1986434

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Michigan State University, East Lansing, MI (United States); Michigan State Univeristy

Methods for modeling the uncertainty in laser tracker angle measurements vary within the metrology industry, leading to confusion and questionable stochastic modeling for survey network adjustments and error propagation analysis. Interpreting the published laser tracker manufacturer performance specifications to determine an a priori sigma value for weighting azimuth and zenith angle measurements can be confusing and has led to differing implementations. Furthermore, this paper proposes a unique way to model survey network a priori laser tracker angular uncertainties based on laser tracker manufacturers’ published maximum permissible error (MPE) values referenced to current standards for weighting survey network measurements. This paper’s proposed model takes into account the disparate effects that pointing errors, target centering errors, and leveling errors have on azimuth and zenith angular uncertainties for measurements with steep sightings and at near ranges.

View Accepted Manuscript (DOE)

Research Organization:: Michigan State University, East Lansing, MI (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP)

Grant/Contract Number:: SC0000661

OSTI ID:: 1986434

Journal Information:: Journal of Surveying Engineering, Journal Name: Journal of Surveying Engineering Journal Issue: 4 Vol. 149; ISSN 0733-9453

Publisher:: American Society of Civil Engineers (ASCE)Copyright Statement

Country of Publication:: United States

Language:: English

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