Compensation of Temperature Drift of Micro Gyroscope by Polynomial Fitting Algorithm

Micromachined gyroscope is easy to be affected by the working environment temperature, leading to temperature drift. In order to reduce the gyro output error caused by temperature change, the polynomial fitting algorithm is used to model and compensate the temperature drift error in this paper. After compensation, the zero output of the gyro is near 0°/s and does not change with temperature changes, the accuracy is greatly improved. The experimental results show that the compensation algorithm can effectively suppress the influence of temperature on the micro gyro sensor.