Consideration of Thermo-Vacuum Stability of a MEMS Gyroscope for Space Applications

Thermo-vacuum stability of the aerospace gyroscopes is one of the crucial issues in the harsh and remote environment of space. This paper reports a bias drift compensation algorithm for the MEMS (microelectromechanical systems) gyroscope with atmosphere package. This approach takes advantage of line...

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Detalles Bibliográficos
Autores principales: Liu, Jili, Fu, Mingrui, Meng, Chao, Li, Jianpeng, Li, Kai, Hu, Jun, Chen, Xiaojuan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Letter
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7765107/
https://www.ncbi.nlm.nih.gov/pubmed/33333719
http://dx.doi.org/10.3390/s20247172
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author Liu, Jili
Fu, Mingrui
Meng, Chao
Li, Jianpeng
Li, Kai
Hu, Jun
Chen, Xiaojuan
author_facet Liu, Jili
Fu, Mingrui
Meng, Chao
Li, Jianpeng
Li, Kai
Hu, Jun
Chen, Xiaojuan
author_sort Liu, Jili
collection PubMed
description Thermo-vacuum stability of the aerospace gyroscopes is one of the crucial issues in the harsh and remote environment of space. This paper reports a bias drift compensation algorithm for the MEMS (microelectromechanical systems) gyroscope with atmosphere package. This approach takes advantage of linear frequency–temperature dependence and linear amplitude–pressure dependence for self-compensation of the gyroscope bias drifts in real-time. The dependences were analyzed and evaluated by subjecting the gyroscope to a thermo-vacuum condition. The real-time self-compensation yielded a total bias error of 0.01°/s over a temperature range of 7–45 °C. A MEMS rate sensor was flown in space and the on-orbit data also verify the effectiveness of the approach.
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spelling pubmed-77651072020-12-27 Consideration of Thermo-Vacuum Stability of a MEMS Gyroscope for Space Applications Liu, Jili Fu, Mingrui Meng, Chao Li, Jianpeng Li, Kai Hu, Jun Chen, Xiaojuan Sensors (Basel) Letter Thermo-vacuum stability of the aerospace gyroscopes is one of the crucial issues in the harsh and remote environment of space. This paper reports a bias drift compensation algorithm for the MEMS (microelectromechanical systems) gyroscope with atmosphere package. This approach takes advantage of linear frequency–temperature dependence and linear amplitude–pressure dependence for self-compensation of the gyroscope bias drifts in real-time. The dependences were analyzed and evaluated by subjecting the gyroscope to a thermo-vacuum condition. The real-time self-compensation yielded a total bias error of 0.01°/s over a temperature range of 7–45 °C. A MEMS rate sensor was flown in space and the on-orbit data also verify the effectiveness of the approach. MDPI 2020-12-15 /pmc/articles/PMC7765107/ /pubmed/33333719 http://dx.doi.org/10.3390/s20247172 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 Letter
Liu, Jili
Fu, Mingrui
Meng, Chao
Li, Jianpeng
Li, Kai
Hu, Jun
Chen, Xiaojuan
Consideration of Thermo-Vacuum Stability of a MEMS Gyroscope for Space Applications
title Consideration of Thermo-Vacuum Stability of a MEMS Gyroscope for Space Applications
title_full Consideration of Thermo-Vacuum Stability of a MEMS Gyroscope for Space Applications
title_fullStr Consideration of Thermo-Vacuum Stability of a MEMS Gyroscope for Space Applications
title_full_unstemmed Consideration of Thermo-Vacuum Stability of a MEMS Gyroscope for Space Applications
title_short Consideration of Thermo-Vacuum Stability of a MEMS Gyroscope for Space Applications
title_sort consideration of thermo-vacuum stability of a mems gyroscope for space applications
topic Letter
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7765107/
https://www.ncbi.nlm.nih.gov/pubmed/33333719
http://dx.doi.org/10.3390/s20247172
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