Fluorometer with multiple detection channels
US9140648B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 12, 2013 |
| Grant date | Sep 22, 2015 |
| Priority date | — |
| Expiry date | Jul 26, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/8416
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An optical sensor may have multiple detection channels to detect different characteristics of a fluid. For example, an optical sensor used in industrial cleaning and sanitizing applications may have multiple detection channels to detect when a system is both clean and properly sanitized. In one example, an optical sensor includes an optical emitter that directs light into a fluid, a first optical detector that detects light transmitted through the fluid, a second optical detector that detects light scattered by the fluid, and a third optical detector that detects fluorescent emissions emitted by the fluid. The optical emitter and optical detectors can be positioned around an optical analysis area. Depending on the application, the optical emitter may be positioned to direct light adjacent a wall of the optical analysis area rather than at a center of the optical analysis area, which may increase the strength of signal on the detection channels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.