Measurement of concentrations of dissolved solvent
US5298967A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 2, 1992 |
| Grant date | Mar 29, 1994 |
| Priority date | — |
| Expiry date | Jun 2, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N1/22
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a system for measuring minute concentrations of dissolved solids in liquids, seed particles of a known diameter are mixed with the liquid and the mixture of the seed particles and the liquid is atomized into droplets of a known size. The droplets are dried to residue particles comprising the seed particle surrounded by a shell of the dissolved solid. The size of the residue particles are measured by passing the residue particles through a laser beam to scatter light to photodetectors so as to generate a pulse from each particle. The amplitude of the pulses will indicate the size of the residue particle from which the thickness of the shell and the concentration of the dissolved solid can be determined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.