Research and design of scanning servo device for airborne microwave radiometer

Abstract

The Microwave Radiometer can obtain various characteristics of the measured target. The remote sensing aircraft has several outstanding advantages such as stronger mobility and larger capacity, which makes the Airborne Microwave Radiometer become the most important part of Microwave Remote Sensing technology. The mechanical structure was designed in this paper, which included airborne microwave radiometer scanning servo device structure and servo control system according to the requirements of the project. The statics and dynamics simulation of the scanning servo device were analyzed, the maximum value is 46.48MPa at the connection between the left support pedestal and the left drive shaft in the statics analysis and the first-order natural frequency of the scanning servo device is 50.516Hz in the modal analysis. The results showed that the mechanical structure meets the requirements of airborne working environment. The current - speed double closed loop control system was used to achieve the high precision speed control. The current - speed double closed loop control system was used to meet the high precision speed control requirements of high precision airborne microwave remote sensing technology.