Method and device for magnetic firing of underwater mines

摘要

The technical field of the invention is that of methods and devices for magnetic firing of underwater mines. The subject of the invention is a firing method allowing evaluation of the distance from the target to the mine and the discrimination of targets on the basis of their tonnage and is characterised in that the level of each of the components of the magnetic field in the vicinity of the mine is detected and tested, as is the level of each of the components of the drift of the field with respect to a given direction, the distance from the target to the mine is calculated as is the magnetic moment of the target and firing is authorised only if the distance is less than a critical distance and if the magnetic moment lies within the chosen range of values. Application to mines with limited effective range and to target discrimination. <IMAGE>