Time-reversed photoacoustic system and uses thereof

Details Time-reversed photoacoustic system and uses thereof Time-reversed photoacoustic system and uses thereof

2006-08-15

2006-08-15

Williams, Hezron (Department: 2856)

Measuring and testing

Vibration

By mechanical waves

C073S643000, C600S407000, C600S439000, C600S443000

Reexamination Certificate

active

07089796

ABSTRACT:
A remote mass is excited with one or more beams, and the surface vibrations of the excited mass are detected with one or more laser vibrometers. Each vibrometer generates a signal indicative of the surface vibrations which is stored, reversed in time, and applied to modulate an exciter beam that is then impinged onto the mass.

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