Thermal Compensation of Low-Cost MEMS Accelerometers for Tilt Measurements.

ABSTRACT: Low-cost MEMS accelerometers have the potential to be used in a number of tilt-based monitoring applications but have the disadvantage of being very sensitive to temperature variation (thermal drift). In this paper, we analyze the thermal behavior of a low-cost sensor in the range -10 to +45 °C in order to provide a simple compensation strategy to mitigate this problem. For sensor analysis, we have developed a miniaturized thermal chamber, which was mounted on a tilting device to account for tilt angle variation. The obtained raw data were used to construct low degree polynomial equations that by relating the measurement error induced by thermal drift (i.e., acceleration residuals) to temperature and inclination (of each specific axis), can be used for thermal compensation. To validate our

SUBMITTER: Ruzza G 

PROVIDER: S-EPMC6111670 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature