Research on MEMS Gyro Temperature Error Compensation Based on Variable Dynamic Conditions Experiment

In order to analyze the effectiveness of the traditional temperature error compensation method of MEMS gyro under static condition and variable dynamic condition, this paper selected function fitting method and constant temperature control method to test the temperature error compensation effect of MEMS gyro under static condition and variable dynamic condition respectively. Firstly, the temperature error models of function fitting method and constant temperature control method are established, and the temperature error compensation effect is tested under static condition. Then, the temperature error compensation effect is tested under different variable dynamic conditions. Finally, by analyzing the source of error, it is determined that the error comes from the gyroscope itself and has nothing to do with the change of test conditions. The test results show that, in terms of temperature error compensation of MEMS gyro, the constant temperature control method and function fitting method have good compensation effect under static condition, but the compensation effect is insufficient under variable dynamic condition. Considering that MEMS gyro is mostly used under variable dynamic condition. More effective strategies are needed to improve the temperature error compensation effect of MEMS gyro under variable dynamic conditions.