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MEMS Sensors Bias Thermal Profiles Classification Using Machine Learning

  • The paper describes the methodology and experimental results for revealing similarities in thermal dependencies of biases of accelerometers and gyroscopes from 250 inertial MEMS chips (MPU-9250). Temperature profiles were measured on an experimental setup with a Peltier element for temperature control. Classification of temperature curves was carried out with machine learning approach. A perfectThe paper describes the methodology and experimental results for revealing similarities in thermal dependencies of biases of accelerometers and gyroscopes from 250 inertial MEMS chips (MPU-9250). Temperature profiles were measured on an experimental setup with a Peltier element for temperature control. Classification of temperature curves was carried out with machine learning approach. A perfect sensor should not have thermal dependency at all. Thus, only sensors inside the clusters with smaller dependency (smaller total temperature slopes) might be pre-selected for production of high accuracy inertial navigation modules. It was found that no unified thermal profile (“family” curve) exists for all sensors in a production batch. However, obviously, sensors might be grouped according to their parameters. Therefore, the temperature compensation profiles might be regressed for each group. 12 slope coefficients on 5 degrees temperature intervals from 0°C to +60°C were used as the features for the k-means++ clustering algorithm. The minimum number of clusters for all sensors to be well separated from each other by bias thermal profiles in our case is 6. It was found by applying the elbow method. For each cluster a regression curve can be obtained.show moreshow less

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Metadaten
Document Type:Conference Proceeding
Conference Type:Konferenzartikel
Zitierlink: https://opus.hs-offenburg.de/3266
Bibliografische Angaben
Title (English):MEMS Sensors Bias Thermal Profiles Classification Using Machine Learning
Conference:International Workshop on Stochastic Modeling and Applied Research of Technology : SMARTY 2018 (1. : September 21st to 25th, 2018 : Petrozavodsk, Russia)
Author:Sergey Reginya, Vladislav Nikolaenko, Roman Voronov, Alexei Soloviev, Axel SikoraStaff MemberORCiDGND, Alex Moschevikin
Year of Publication:2018
Contributing Corporation:Institute of Applied Mathematical Research
Place of publication:Aachen
Publisher:RWTH
First Page:17
Last Page:28
Parent Title (English):Proceedings of the First International Workshop on Stochastic Modeling and Applied Research of Technology
Editor:Evsey Morozov, Alexander Rumyantsev
Volume:CEUR workshop proceedings 2278
ISSN:1613-0073
URL:http://ceur-ws.org/Vol-2278/
URN:https://urn:nbn:de:0074-2278-2
Language:English
Inhaltliche Informationen
Institutes:Forschung / ivESK - Institut für verlässliche Embedded Systems und Kommunikationselektronik
Fakultät Elektrotechnik und Informationstechnik (E+I) (bis 03/2019)
Institutes:Bibliografie
Tag:MEMS; accelerometer; cluster; gyroscope; inertial measurement unit; machine learning; temperature dependency
Formale Angaben
Open Access: Open Access 
Licence (German):License LogoUrheberrechtlich geschützt