Detection of ferromagnetic objects by using scalar magnetometers

The paper presents the results of the analysis of the possibility of detecting ferromagnetic objects (ships, submarines, mines, etc.) by using two scalar magnetometers. By using two magnetometers of high sensitivity (in the order of magnitude of pT/Hz^0,5) placed at a distance from each other and operating in a differential system, it is possible to detect ferromagnetic objects from a distance. It is necessary to compensate for the error code to synchronize the work of the two magnetometers. Ferromagnetic object’s detection by using two magnetometers requires proper configuration of the devices.