Time-reversed photoacoustic system and uses thereof
US7089796B2 · kind B2 · utility
23Cited by
11References
42Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 24, 2004 |
| Grant date | Aug 15, 2006 |
| Priority date | — |
| Expiry date | Mar 24, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01H9/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.