Alignment error correction of a new magnetic gradient tensor detector

Abstract

The eight-sensor planar cross magnetic gradient tensor detection system can detect both first-order and second-order magnetic gradient tensors. Compared with the traditional four-sensor and five-sensor planar cross-shaped magnetic gradient tensor system, the measured tensor data is more stable. However, the alignment error correction has not been studied in the eight-sensor planar cross magnetic gradient tensor detection system. Aiming at this problem, alignment error correction is carried out in this paper. The simulation results show that the proposed method can effectively correct the alignment error.