Abstract
This paper mainly simulates and analyzes the working conditions of the in-situ detection system for the magnetic properties of seabed sediments in the marine environment. Firstly, the causes and influencing factors of eddy current loss in seawater are analyzed. Secondly, the influence of seawater eddy current loss is equivalent to seawater impedance circuit, and the influence on coil resistance, inductance and magnetic field generated by the coil is qualitatively analyzed. Finally, a COMSOL simulation model is built to verify the mentioned-above theoretical analysis. The simulation results show that compared with those in the air environment, the equivalent resistance of the coil increases, the equivalent inductance decreases and the magnetic field generated by the coil decreases in the marine environment.
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