UAV geophysical surveys can adapt to complex ground exploration environments and greatly reduce the safety risk of operators, which may be applied in geophysical surveys, geological investigations, resource exploration and other fields. Rotary-wing UAV is characterized by its flexible start-stop mode, high safety profile and night navigation. In this paper, according to the DY-115 rotary-wing UAV, an aeromagnetic measuring system with 115KG large load capacity was designed and integrated, and a magnetic compensation flight and test flight were successively carried out. The data satisfied the requirements of the technical specifications. By comparing and analyzing the test aeromagnetic anomaly data with the field magnetic data, the overall trend of the contour was observed to be basically the same as the shape. Accordingly, the aeromagnetic anomaly was found to be smoother and more continuous, which aligned with the interpretation and inversion of the anomaly, further verifying the stability, reliability and practicability of the large load rotary-wing UAV aeromagnetic measurement system.

无人机地球物理勘察能够适应复杂的地面勘探环境，大大降低操作人员的安全风险，可应用于地球物理勘察、地质调查、资源勘探等领域。旋翼无人机具有起停方式灵活、安全性高、夜间导航等特点。本文针对DY-115旋翼无人机，设计并集成了115KG大载荷能力的航磁测量系统，并先后进行了磁补偿飞行和试飞。数据满足技术规范要求。通过将试验航磁异常数据与场磁数据进行对比分析，观察到等高线的整体趋势与形状基本一致。因此，