Cargando…

Accelerometer Triad Calibration for Pole Tilt Compensation Using Variance Based Sensitivity Analysis

In Engineering Geodesy, most coordinate frames are aligned with the local vertical. For many measurement tasks, it is therefore necessary to manually (or arithmetically) align sensors or equipment with the local vertical, which is a common source of errors and it is very time consuming. Alternativel...

Descripción completa

Detalles Bibliográficos
Autores principales: Thalmann, Tomas, Zechner, Manuel, Neuner, Hans
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7085573/
https://www.ncbi.nlm.nih.gov/pubmed/32182672
http://dx.doi.org/10.3390/s20051481
_version_ 1783508962751021056
author Thalmann, Tomas
Zechner, Manuel
Neuner, Hans
author_facet Thalmann, Tomas
Zechner, Manuel
Neuner, Hans
author_sort Thalmann, Tomas
collection PubMed
description In Engineering Geodesy, most coordinate frames are aligned with the local vertical. For many measurement tasks, it is therefore necessary to manually (or arithmetically) align sensors or equipment with the local vertical, which is a common source of errors and it is very time consuming. Alternatively, accelerometer triads as part of inertial measurement units (IMUs) are used in several applications for horizon leveling. In this contribution we analyze and develop a method to use accelerometer triads for pole tilt compensation with total stations. Several triad sensor models are investigated and applied in a calibration routine using an industrial robot arm. Furthermore a calibration routine to determine the orientation of the IMU mounted on the pole is proposed. Using variance based sensitivity analysis we investigate the influence of different model parameters on leveling and pole tilt compensation. Based on this inference the developed calibration routines are adjusted. The final evaluation experiment shows an RMS of 2.4 mm for the tilt compensated measured ground point with tilts up to 50 gon.
format Online
Article
Text
id pubmed-7085573
institution National Center for Biotechnology Information
language English
publishDate 2020
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-70855732020-03-23 Accelerometer Triad Calibration for Pole Tilt Compensation Using Variance Based Sensitivity Analysis Thalmann, Tomas Zechner, Manuel Neuner, Hans Sensors (Basel) Article In Engineering Geodesy, most coordinate frames are aligned with the local vertical. For many measurement tasks, it is therefore necessary to manually (or arithmetically) align sensors or equipment with the local vertical, which is a common source of errors and it is very time consuming. Alternatively, accelerometer triads as part of inertial measurement units (IMUs) are used in several applications for horizon leveling. In this contribution we analyze and develop a method to use accelerometer triads for pole tilt compensation with total stations. Several triad sensor models are investigated and applied in a calibration routine using an industrial robot arm. Furthermore a calibration routine to determine the orientation of the IMU mounted on the pole is proposed. Using variance based sensitivity analysis we investigate the influence of different model parameters on leveling and pole tilt compensation. Based on this inference the developed calibration routines are adjusted. The final evaluation experiment shows an RMS of 2.4 mm for the tilt compensated measured ground point with tilts up to 50 gon. MDPI 2020-03-08 /pmc/articles/PMC7085573/ /pubmed/32182672 http://dx.doi.org/10.3390/s20051481 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Thalmann, Tomas
Zechner, Manuel
Neuner, Hans
Accelerometer Triad Calibration for Pole Tilt Compensation Using Variance Based Sensitivity Analysis
title Accelerometer Triad Calibration for Pole Tilt Compensation Using Variance Based Sensitivity Analysis
title_full Accelerometer Triad Calibration for Pole Tilt Compensation Using Variance Based Sensitivity Analysis
title_fullStr Accelerometer Triad Calibration for Pole Tilt Compensation Using Variance Based Sensitivity Analysis
title_full_unstemmed Accelerometer Triad Calibration for Pole Tilt Compensation Using Variance Based Sensitivity Analysis
title_short Accelerometer Triad Calibration for Pole Tilt Compensation Using Variance Based Sensitivity Analysis
title_sort accelerometer triad calibration for pole tilt compensation using variance based sensitivity analysis
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7085573/
https://www.ncbi.nlm.nih.gov/pubmed/32182672
http://dx.doi.org/10.3390/s20051481
work_keys_str_mv AT thalmanntomas accelerometertriadcalibrationforpoletiltcompensationusingvariancebasedsensitivityanalysis
AT zechnermanuel accelerometertriadcalibrationforpoletiltcompensationusingvariancebasedsensitivityanalysis
AT neunerhans accelerometertriadcalibrationforpoletiltcompensationusingvariancebasedsensitivityanalysis