Device and method for measuring and tracking the quantity or concentration of a compound in a fluid
US11054360B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 20, 2018 |
| Grant date | Jul 6, 2021 |
| Priority date | — |
| Expiry date | Apr 20, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/124
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device for measuring and tracking over time the quantity or concentration of a component in a fluid comprises: a sensor capable of measuring a quantity or concentration of the component in the fluid and providing a quantitative signal for tracking this quantity or concentration over time; a signal-processing module comprising a low-pass filter of the quantitative tracking signal; and an output interface for providing the filtered quantitative tracking signal. The signal-processing module comprises an estimator of a value of instantaneous trend of variation of the quantitative tracking signal in a predetermined sliding time window. Also provided is means for adjusting over time a high cutoff frequency of the low-pass filter according to the estimated value of instantaneous trend of variation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.