Apparatus and method for direct measurement of absorption and scattering coefficients in situ
US7057730B2 · kind B2 · utility
1Cited by
4References
31Claims
0Family size
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Key dates
| Filing date | Nov 17, 2003 |
| Grant date | Jun 6, 2006 |
| Priority date | — |
| Expiry date | Nov 11, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/0634
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for measuring an absorption coefficient includes a first diffusive material, a second diffusive material inside the first diffusive material separated from the first diffusive material by a cavity, and a transparent material proximate to an inner surface of the second diffusive material that holds an absorptive material. First and second light detectors measure light intensities in the first and second diffusive materials respectively. An absorption coefficient for the absorptive material may be determined based on the first and second light intensities measured when the cavity is illuminated by a light source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.