Photoacoustic doppler flow sensing and imaging
US7917312B2 · kind B2 · utility
38Cited by
5References
9Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 20, 2008 |
| Grant date | Mar 29, 2011 |
| Priority date | — |
| Expiry date | Apr 1, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/667
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for measuring a fluid flow includes employing small light-absorbing particles as tracers that flow at the same speed as the fluid, measuring the photoacoustic Doppler shifts of the photoacoustic signals produced by these tracer particles, and determining, from the measurements, information about the flow including one or more of the flow speed, flow profile, and flow direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.