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Tilt Sensor with Recalibration Feature Based on MEMS Accelerometer
The main errors of MEMS accelerometers are misalignments of their sensitivity axes, thermal and long-term drifts, imprecise factory calibration, and aging phenomena. In order to reduce these errors, a two-axial tilt sensor comprising a triaxial MEMS accelerometer, an aligning unit, and solid cubic h...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8877624/ https://www.ncbi.nlm.nih.gov/pubmed/35214402 http://dx.doi.org/10.3390/s22041504 |
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author | Łuczak, Sergiusz Zams, Maciej Dąbrowski, Bogdan Kusznierewicz, Zbigniew |
author_facet | Łuczak, Sergiusz Zams, Maciej Dąbrowski, Bogdan Kusznierewicz, Zbigniew |
author_sort | Łuczak, Sergiusz |
collection | PubMed |
description | The main errors of MEMS accelerometers are misalignments of their sensitivity axes, thermal and long-term drifts, imprecise factory calibration, and aging phenomena. In order to reduce these errors, a two-axial tilt sensor comprising a triaxial MEMS accelerometer, an aligning unit, and solid cubic housing was built. By means of the aligning unit it was possible to align the orientation of the accelerometer sensitive axes with respect to the housing with an accuracy of 0.03°. Owing to the housing, the sensor could be easily and quickly recalibrated, and thus errors such as thermal and long-term drifts as well as effects of aging were eliminated. Moreover, errors due to local and temporal variations of the gravitational acceleration can be compensated for. Procedures for calibrating and aligning the accelerometer are described. Values of thermal and long-term drifts of the tested sensor, resulting in tilt errors of even 0.4°, are presented. Application of the sensor for monitoring elevated loads is discussed. |
format | Online Article Text |
id | pubmed-8877624 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-88776242022-02-26 Tilt Sensor with Recalibration Feature Based on MEMS Accelerometer Łuczak, Sergiusz Zams, Maciej Dąbrowski, Bogdan Kusznierewicz, Zbigniew Sensors (Basel) Article The main errors of MEMS accelerometers are misalignments of their sensitivity axes, thermal and long-term drifts, imprecise factory calibration, and aging phenomena. In order to reduce these errors, a two-axial tilt sensor comprising a triaxial MEMS accelerometer, an aligning unit, and solid cubic housing was built. By means of the aligning unit it was possible to align the orientation of the accelerometer sensitive axes with respect to the housing with an accuracy of 0.03°. Owing to the housing, the sensor could be easily and quickly recalibrated, and thus errors such as thermal and long-term drifts as well as effects of aging were eliminated. Moreover, errors due to local and temporal variations of the gravitational acceleration can be compensated for. Procedures for calibrating and aligning the accelerometer are described. Values of thermal and long-term drifts of the tested sensor, resulting in tilt errors of even 0.4°, are presented. Application of the sensor for monitoring elevated loads is discussed. MDPI 2022-02-15 /pmc/articles/PMC8877624/ /pubmed/35214402 http://dx.doi.org/10.3390/s22041504 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Łuczak, Sergiusz Zams, Maciej Dąbrowski, Bogdan Kusznierewicz, Zbigniew Tilt Sensor with Recalibration Feature Based on MEMS Accelerometer |
title | Tilt Sensor with Recalibration Feature Based on MEMS Accelerometer |
title_full | Tilt Sensor with Recalibration Feature Based on MEMS Accelerometer |
title_fullStr | Tilt Sensor with Recalibration Feature Based on MEMS Accelerometer |
title_full_unstemmed | Tilt Sensor with Recalibration Feature Based on MEMS Accelerometer |
title_short | Tilt Sensor with Recalibration Feature Based on MEMS Accelerometer |
title_sort | tilt sensor with recalibration feature based on mems accelerometer |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8877624/ https://www.ncbi.nlm.nih.gov/pubmed/35214402 http://dx.doi.org/10.3390/s22041504 |
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