NDIR glucose detection in liquids
US10241044B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 7, 2018 |
| Grant date | Mar 26, 2019 |
| Priority date | — |
| Expiry date | Aug 7, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/127
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
For determining concentration of targeted molecules MG in a liquid sample admixed with interfering molecules MJ which overlap their absorption band, a special NDIR sampling and calibration technique is employed. Besides the signal source, a reference and one or more interference sources are added. The selection of the wavelength for the interference sources enables its measured transmittance value to be used for deciding the validity of the calibration curve for molecules MG in the liquid sample. This value can further be used to adjust the calibration curve via a parameter linking the transmittances measured at the signal and interference wavelength channels in order to assure its validity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.