The new technology relates to a system and a process for aeromagnetic geophysical prospecting. Geophysical prospecting is a non-destructive investigation technique of the subsoil which consists in measuring, using specific measuring instruments, some physical parameters of the soil that can reveal its structure, as well as the presence of buried objects. One geophysical prospecting technique is magnetometric prospecting. The magnetometric survey is applied in various areas: environmental monitoring (eg. Carrying out measurements that allow to detect the presence of pollutants and illegal landfills); archeology (e.g. identification of buried structures of archaeological interest); forensic field (eg. identification of arms deposits or human burials); military context (e.g. identification of minefields); civil field; mining investigations; oil exploration; and geotechnics. We propose a system for aeromagnetic geophysical prospecting comprising a drone and two magnetometers preferably connected to the drone and spaced apart from each other.
Various attempts have been made to solve the problem of providing a reliable and accurate aeromagnetic geophysical prospecting system. The problem presents obvious difficulties, due to the need to limit the number of additional components that contribute to increasing implementation costs and the complexity of using the system. The innovation consists in the miniaturization of the instrumentation. Compared to the existing one, the two micro-sensors are solidly connected to the drone and spaced from each other. It should be noted that, in this context, two elements are "solidly connected" when any translation or relative rotation between said elements is precluded.
It is understood that the two sensors can be solidly connected to the drone in a permanent way or they can be solidly connected to the drone in a removable way by means of removable connection means. All the instruments have a weight of about 300g. Furthermore, there are currently no applications of the portable magnetometric methodology in hostile environments such as those in which the presence of obstacles is strong (strong vegetation, walls, etc.). The new instrumentation makes it possible.
Italy