Effect of Large Uncompensated Transverse Fields on the Fluxgate Magnetic SensorOutput

摘要

The effect of uncompensated transverse fields on the output of several types offluxgate sensors has been investigated taking as a starting point the full 4pie steradian calibration model of the MAGSAT magnetometer, and proceeding with data from magnetometers in the laboratory and flown on board sounding rockets. Tubular ferrite core sensors are very sensitive to transverse fields. Ring-cores are sensitive to transverse fields but only in the plane of the ring. Linear double rod sensors are not affected by transverse fields. Maintaining the sensor in a homogeneous null field in all three directions eliminates the transverse field effect.