Acoustic monitoring of a structure

Details Acoustic monitoring of a structure Acoustic monitoring of a structure

G - Physics

01

H

G01H 5/00 (2006.01) G01N 29/14 (2006.01) G01N 29/38 (2006.01)

Patent

CA 2348329

Discloses a method for monitoring acoustic wave propagation in a structure using a limited number of acoustic sensors. The transfer function of the structure is measured between each sensor and selected locations remote from the sensor using a known source of acoustic waves, such as a Schmidt hammer. Signals from the acoustic sensors are monitored and when a trigger event is detected, the signals received at the sensors are compensated by the measured transfer function to estimate the signal at source. Tests are applied to the signal at source to decide whether to log the received signals and to assess whether the acoustic event is an event of interest.

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