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Ferroprobe Magnetometer with Preset Excitation Field Induction Mode

A new type of ferroprobe magnetometer was proposed to detect subsurface items. Operating characteristics were improved by making use of an auxiliary bias field caused by a permanent magnet. It was proposed to use a generator capacitor as an excitation element; the generator capacitor coatings are connected to a sine-wave oscillator and are designed as thin-walled semicylinders enclosing the ferroprobe core and the specified permanent magnet. The measuring instrument structure flowchart was presented, its operating principles and design features were considered. It was shown that by setting different relationships between the intensity values of magnetic fields generated by the generator capacitor and the permanent magnet, one can implement different ferroprobe operating modes. This characteristic of the proposed ferroprobe can be used to solve various tasks connected with subsurface items detection and identification