Design and Verification of Low Frequency Alternating Magnetic Field Detection Device Based on Unstable Platform

Abstract Low frequency alternating magnetic field is one of the important features for marine detection. In order to realize effective detection low-frequency signal in environment, a device based on unstable platform was designed low-power optical pump magnetometer and control processing circuit this paper. The can be stored. power spectrum analysis, line purification, extraction so processed online, results are saved transmitted upper computer through serial communication. test laboratory offshore source show that has good ability low measurement, analysis extraction.