DEVICE FOR DETECTING AT LEAST ONE OBJECT BURIED IN A PILE AND METHOD IMPLEMENTED IN SUCH A DEVICE.

摘要

This device comprises a circuit for deep exploration composed of: a deep exploration part positioned on a support for exploring said pile (5) that moves, relative to said support, at a speed V, said exploration part being associated with a radiation assembly (18) for emitting signals at an exploration frequency penetrating into said pile and for receiving signals reflected from said pile (5); and a first processing circuit (16) for providing reflectivity indications in several directions in terms of said pile. Said device further comprises a second superficial exploration circuit comprising a head for emitting and receiving signals to and from said pile with a view to conducting a topographic survey of said pile. A third processing circuit (40) is provided to establish the reflectivity of each point of said pile by combining the information from said first and second processing circuits, taking account of the electromagnetic properties of said pile. The invention is applicable to the detection of metal materials in a cargo of ore in a lorry.