S-WAVE EARTHQUAKE WAVE PROBING MODEL EXPERIMENT METHOD AND DEVICE

摘要

PROBLEM TO BE SOLVED: To execute an indoor scale that can truthfully reproduce an S-wave acoustic wave investigation that is performed outdoors. SOLUTION: An oscillation element such as a piezoelectric element 11 for generating an acoustic wave at a small region with a sample 1 is used as a vibration source, and vibration on a sample surface is replaced by translation of a recursive reflection object being adhered to a reflection sheet 20 and is directly measured by a laser Doppler vibrator 30. A detected waveform is inputted to a waveform digital storage device 40 and the detection processing of the small movement of an ultrasonic region due to the overlapping of a digitized waveform is performed, for example, by a data-processing means 50 such as a computer.