Nuclear-resonance magnetometer with a flowing liquid to measure weak fields

A method to measure weak magnetic fields by a nuclear-resonance nutation magnetometer with a flowing liquid is considered. Requirements and conditions that should be imposed on different structural elements of the magnetometer and the parameters of the liquid are determined experimentally and theoretically. Appropriate liquids are found experimentally. The measuring probe of the magnetometer is tested with pure water. Ways to further refine the magnetometer and to improve its accuracy are suggested.