Actuated multi-chamber cells for fluid analysis
US11150180B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 15, 2019 |
| Grant date | Oct 19, 2021 |
| Priority date | — |
| Expiry date | Jan 15, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/0446
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A microfluidic analyzer includes optical sources and optical detectors, the sources generating optical beams, and a multi-chamber fluid cell mounted for relative movement of the fluid cell and the beams to selectively align fluid chambers with beam paths for obtaining optical-response measurements. The cell is configured to reduce differential optical-response measurement between fluid chambers not attributed to a differential analyte in chamber fluids. A controller (1) generates actuator control signals to produce the relative movement of the fluid cell and beams through a sequence of measurement positions, (2) for each measurement position, obtains a set of detector output values, and (3) applies processing to the detector output values to obtain differential optical-response measurements for characterizing a differential analyte between chamber fluids of the cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.