Research on Magnetic Characteristics of Small UAV for Aeromagnetic Measurement

UAV has the characteristics of small size, light weight, low cost, convenient assembly and maintenance, etc. It is suitable for aeromagnetic exploration, mapping, agriculture and forestry plant protection and other fields. Commercial drones, combined with aerospace magnetic measurement with its excellent platform value, can play an important role in small-scale geomagnetic surveying and magnetic anomaly detection in key areas. In the aeromagnetic measurement process of the drone, the small-scale and high-integrated hardware configuration results in a high level of near-field magnetic interference of the drone, which affects the magnetic detection effect. This paper selects a small commercial unmanned aerial vehicle for magnetic characteristics research. The static and dynamic flight magnetic tests of the UAV were carried out in the zero-magnetic laboratory, and the magnetic moment and magnetic field characteristics were analyzed. The experimental results will be used as the data basis for magnetic interference noise reduction in UAV aeromagnetic survey applications.