Abstract

According to the development and need of the underwater magnetic field measurement, this paper offers a development method and realizing a process of a full information magnetic field measurement system based on high sensitive magnetoresistive magnetometers of HMC1001&HMC1002. The system includes the magnetic and degree sensors system , data storage module ,the control and data acquisition system. The system’s main features include its high resolution, full information, mass storage , low power and synchronously multichannel A/D. The noise of the system is measured in a magnetic shield canister and the result is 5nT. Performances of the system have been tested in practical and results prove the system meets the need of the actual underwater magnetic field measurement in application.

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