Non-orthogonal Error Analysis of TriaxialMagnetic Sensor Based on High Tc DC SQUIDs

Abstract

As a high-sensitive and wide-band magnetic field sensor, SuperconductingQuantum Interference Devices (SQUIDs) have great advantagesin mineral detection and submarine communications. However, due tothe complexity of the Marine environment, the noise of the detectionmodule itself will have a significant impact on the detection results.Among them, the non-orthogonality of the triaxial sensor is one ofthe important parameters in the evaluation of the detection system.In this paper, the influence results of non-orthogonality on static anddynamic detection sources are given through theoretical derivation andsimulation analysis, and the non-orthogonality of the triaxial module isevaluated through experiments, and then the non-orthogonality of themodule is derived by simulation. Finally, the triaxial module is usedto test the actual magnetic field. The results of this paper have a certainguiding role for the future application of triaxial sensors in theocean and the evaluation of the non-orthogonality of triaxial modules.