APPAREIL ET PROCÉDÉ DE MISE EN OEUVRE D'UNE TECHNIQUE D'EXCITATION PAR IMPACT

摘要

The invention pertains to an apparatus for analyzing a mechanical vibratory response of a solid material sample, the apparatus comprising: at least one impactor arranged to impart an impact on respective well-defined points on the surface of said solid material sample; a sensor configured to capture said mechanical vibratory response as a time-varying signal, subsequent to an impact of said at least one impactor; and processing means configured to analyze said time-varying signal to determine the frequencies and decay constants of sinusoids making up said time-varying signal. The invention also pertains to a corresponding method of characterizing a solid material sample.