关键词: 无人机, 重量, 重心, 地面设备, 称重仪

Abstract: The composition, hardware working principle and software designing specification of the weighing instrument for CX1 UAV are described. The calculating formulas of gross weight and center of gravity are deduced. Besides, the measure error of the system is analyzed and modified.The fuselage of CX1 UAV (Unmanned Air Vehicle)is slight and motive equipment is relatively far from the plane center,which influence the flying performance greatly.The Weighing Instrument for CX1 UAV is a special ground-weighing device,it can measure automatically the weight of three supports on the table,calculate and show the gross weight and gravity of CX1 UAV,it can conveniently realize the preparation of weight and fuselage of the plane.

Key words: unmanned air vehicle(UAV), weight, center of gravity, ground equipment, weighing instrument