Particle size variation monitoring in a fluid
US7830509B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2009 |
| Grant date | Nov 9, 2010 |
| Priority date | — |
| Expiry date | Dec 17, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2015/0092
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method continuously monitors variations in the size of particles present in a fluid on a real time basis. The method includes passing one or more optical signal through the fluid such as engine oil. The variation (attenuation or enhancement) in the intensity of the optical signal is continuously measured with respect to time. In an embodiment, the method enables monitoring of the amount, size and onset of particle agglomeration using single or multiple wavelengths as interrogating optical signal(s). An exemplary embodiment is provided for monitoring of the amount, size and onset of soot particle agglomeration in engine oil using single or multiple wavelengths as interrogating optical signal(s).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.