Impact factor analysis on precision of magnetic gradient full tensor measurement system

Abstract

In order to achieve a comprehensive analysis of the influencing factors on the accuracy of the magnetic gradient full tensor measurement system, an orthogonal experimental design method is proposed to analyze the errors caused by the influencing factors. The influence of each factor on the accuracy of the measurement system is obtained more comprehensively. Furthermore, the relative degree of influence of the factor is obtained. Four factors including resolution, baseline length, measurement distance, and magnetic moment direction are selected for simulation calculation. The simulation results and analysis show that among the selected factors, the resolution has the greatest influence on the accuracy of the measurement system and the magnetic moment direction has the least influence. In the actual measurement system design, if the optimal configuration of the four factors cannot be satisfied, the former can be satisfied in priority in the order of resolution, measurement distance, baseline length, and magnetic moment direction.