Sensor for determining a measurand and method for determining a measurand with a sensor
US11879882B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 25, 2022 |
| Grant date | Jan 23, 2024 |
| Priority date | — |
| Expiry date | Jul 7, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01F31/86
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sensor for determining a measurand dependent on a concentration of a gaseous analyte in a liquid medium includes: a closed measurement chamber with a gas sensor sensitive to the gaseous analyte for generating a measurement signal which is dependent on the concentration of the gaseous analyte in the measurement chamber; a diffusion membrane impermeable to liquid and gas-permeable to the gaseous analyte, which diffusion membrane closes the measurement chamber and includes a medium-contacting second surface; an evaluation unit for determining the measurand on the basis of the measurement signal; and an ultrasound emission unit designed to introduce ultrasonic waves into the medium such that a mixing of the medium is generated in a volume adjacent the medium-contacting second surface. Further disclosed is a method for determining the measurand dependent on the concentration of the gaseous analyte in the liquid medium using the disclosed sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.