Uncertainty of angular displacement measurement with a MEMS gyroscope integrated in a smartphone

3rd International Congress on Mechanical Metrology

物理学;力学

De Campos Porath, Maurício^1 ; Dolci, Ricardo^1

Universidade Federal de Santa Catarina - Campus Joinville, Rua Dr. João Colin 2700, Joinville/SC

89218-035, Brazil^1

关键词: Angular displacement;    Angular displacement measurement;    Electronic device;    Inertial sensor;    Low costs;    Maximum error;    Measurement time;    MEMS gyroscope;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/648/1/012007/pdf
DOI  :  10.1088/1742-6596/648/1/012007

学科分类：力学，机械学

来源: IOP

【 摘 要 】

Low-cost inertial sensors have recently gained popularity and are now widely used in electronic devices such as smartphones and tablets. In this paper we present the results of a set of experiments aiming to assess the angular displacement measurement errors of a gyroscope integrated in a smartphone of a recent model. The goal is to verify whether these sensors could substitute dedicated electronic inclinometers for the measurement of angular displacement. We estimated a maximum error of 0.3° (sum of expanded uncertainty and maximum absolute bias) for the roll and pitch axes, for a measurement time without referencing up to 1 h.