Open AccessMagnetic Moment Measurement Method Based on Magnetic Sensor Array
Author(s) -
Hexuan Sun,
Jiang Liang,
Huiqiang Zhi,
Dongxing Pei
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/714/4/042043
Subject(s) - magnetic moment , magnetic field , magnetic energy , moment (physics) , sensor array , electron magnetic dipole moment , physics , computer science , acoustics , magnetic dipole , electronic engineering , computational physics , magnetization , engineering , classical mechanics , condensed matter physics , quantum mechanics , machine learning
The magnetic moment measurement method based on magnetic sensor array is proposed to solve the problems of cumbersome calculation process and low inversion accuracy in the current magnetic moment calculation methods. Based on the concepts of magnetic field intensity, magnetic gradient tensor and Frobenius norm, this method can use the magnetic field information collected by magnetic sensor array to calculate the magnetic moment vector. The factors that may affect the measurement effect, such as sensor array structure, sensor precision and baseline size, are analyzed by simulation, and the advantages and disadvantages of three magnetic moment measurement methods based on magnetic sensor array are compared. Simulation results show that the proposed method is flexible in use, convenient in measurement, accurate in results, and has strong feasibility and reliability in geological survey and other applications.