Microscopic particles containing imbedded fluorescent dyes and use thereof in particle-image velocimetry
US5124071A · kind A · utility
3Cited by
7References
8Claims
0Family size
Inventor
Key dates
| Filing date | Sep 20, 1990 |
| Grant date | Jun 23, 1992 |
| Priority date | — |
| Expiry date | Sep 20, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2998
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Microscopic, neutrally buoyant particles containing fluorescing compounds used for tracers of large scale turbulent flows. The particles are generated by dissolving acrylics in a solvent and mixing the solution with fluorescing dyes. This mixture is sprayed into a heated chamber where the solvent evaporates, and the solid acrylic with the imbedded dye settles on the bottom of the chamber. The dust is collected, and the particles are separated according to size using a filter. Dye residue on the particles' surface is washed leaving the dye imbedded within the particles. The particles are then used within flow fields.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.