Optical sensing of fluid condition-method and apparatus
US7450235B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 18, 2005 |
| Grant date | Nov 11, 2008 |
| Priority date | — |
| Expiry date | Jul 14, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/64
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to an apparatus and a method to monitor the condition of a fluid by measuring multiple optical properties of the fluid. The apparatus comprises of a body 105, at least one fluidic cavity 110 to capture a fluid sample, at least one light source 115 to emit an optical signal and at least one optical detector 120 to detect the optical signal. The fluid sample is collected continuously from a path of a fluid flow and multiple optical properties are measured in real time to determine the condition of the fluid. The apparatus is installed in-line with the path of the fluid flow in the system for which the fluid is being used and monitored. The apparatus avoids environmental contamination and wastage of the fluid sample by returning the fluid sample back into the fluid flow.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.