Research On Information Monitoring And Data Processing Technology For On-orbit Testing Of Aerospace Component

With the increasing demand for satellite networking,the satellite volume has increased rapidly,and the demand for satellite volume and cost has declined.The cost and volume of fiber optic gyroscope and mechanical gyroscope have failed to meet the demand for satellite use,while the MEMS gyroscope technology has gradually matured,and its advantages of low cost and small size have been reflected.In China,as a key controller,the performance index of quartz MEMS gyroscope has completely reached or even exceeded that of QRS and STIM series products in the United States and Norway,but no space application validation research has been reported.In this paper,an on orbit information acquisition and data monitoring system with high stability and reliability is designed and developed according to the coexistence of low pressure,thermal vacuum and irradiation in space environment.It realizes the output signal acquisition of multiple MEMS gyroscopes,such as analog single axis quartz gyroscope,digital single axis quartz gyroscope,built-in analog single axis three-axis quartz gyroscope,built-in analog single axis inertial measurement unit,built-in digital single axis three-axis quartz gyroscope,and built-in digital single axis inertial measurement unit.On the basis of the above signal acquisition scheme,this paper designs a corresponding micro signal acquisition scheme for a quartz MEMS gyroscope,and demonstrates the feasibility of this scheme,so as to improve the unit signal acquisition accuracy and system reliability.The data acquisition and processing system is suitable for monitoring the working state and performance of low-cost,small volume quartz MEMS gyroscope in the extravehicular space environment under non exposed conditions.During the carrying process,the output of the quartz gyroscope is collected in real time and data is returned regularly.Explore the technical state of low-cost,small volume quartz MEMS gyroscope to adapt to the space environment conditions of low and medium orbit,fill the gap in space application of quartz micromechanical gyroscope,and provide practical application reference for subsequent research.