Dynamic Temperature Test of Gyroscope for Automotive Applications

In the automotive field there is a significant increase in the demand of accurate sensors for both functional and diagnostic purposes. Among all of them, MEMS (Micro Electro Mechanical Systems) gyroscopes are of fundamental importance for both positioning estimation and fault diagnosis tools. For this reason, the metrological characteristics of such devices must be accurate and stable to guarantee a precise position definition and a correct angle determination. However, both manufacturer and recent literature miss to consider the actual operating conditions of the device in their characterization. Targeting this gap, this work presents a preliminary characterization carried out on a triaxial MEMS-based gyroscope under various operating temperatures, covering all the possible scenarios that can be endured in the automotive field. The analysis of the results pointed out a significant drift in the device's performances and an uncorrelated behavior between temperature and each axis's response.