AC vector magnetometer for space-based applications using low-resource magneto-impedance sensor

This study proposes a novel AC vector magnetometer developed using a low-resource magneto-impedance sensor for China’s Feng-Yun meteorological satellite (FY-3E). It was calibrated and characterized to determine its performance parameters. The total weight of the AC vector magnetometer is 51 g (the aluminum box excluded), while the total power consumption is 310 mW. The proposed AC vector magnetometer can detect magnetic field variations in the range of ±1000 nT and noise power spectral density of ⩽ 50 pT/Hz1/2 @ 1 Hz. Furthermore, the proposed device has a maximum nonlinearity of ⩽ 0.71‰ over the entire range and a nonorthogonality error of 3.07 nT or 0.15