ACOUSTICAL MEANS FOR DETECTION, LOCATION AND AUTOMATIC EVALUATION OF IMPACTS SUBJECT TO A STRUCTURE

摘要

The device detects and locates an impact (17) on a structure (11). The device comprises at least three acoustic sensors (13) in such a way that an acoustic wave (18) emitted at any point of a measurement volume (12a) can be received in direct propagation by each of the sensors (13), and comprises control and control means (15) configured to process the signals corresponding to the acoustic waves received by the acoustic sensors (13), to detect occurrence of an impact (17), to locate a point of the structure at the origin an acoustic wave (18). At least one optical pointer (14) is actuated by the control and control means (15) to designate an impact point (17) located on the structure by illuminating (22) a corresponding location of said structure.