High-sensitive ESR magnetometer for measuring of the Earth geomagnetic field: novel solutions

A compact high-sensitive magnetometer was designed for measuring of the Earth geomagnetic field and its variations. Novel technical solution was applied for the magnetometer that improved the device characteristics as compared with the early designed devices. The paper contains description of the magnitometer construction, of the main electronic blocks, of the software. A model of the magnetometer was created and tested. Results of test and main device characteristic are presented in the paper.