Optical sensor element, optical oxygen sensor, and method for monitoring the function of an optical oxygen sensor
US12072292B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 21, 2021 |
| Grant date | Aug 27, 2024 |
| Priority date | — |
| Expiry date | Dec 21, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/7796
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present disclosure relates to an optochemical sensor element, comprising: a substrate layer having a first substrate side facing toward a measuring medium and a second substrate side opposite the first substrate side; a functional layer arranged on the first substrate side and is subdivided into functional segments separate from one another, wherein a first functional segment has a second reference dye and a second functional segment has an indicator dye, wherein the second reference dye comprises an organic material and is insensitive to oxygen, and is suitable to emit a second luminescence signal upon stimulation with a first stimulation signal, wherein the indicator dye comprises an organic material and is sensitive to oxygen, and is suitable to emit a third luminescence signal upon stimulation with the first stimulation signal, wherein the substrate layer is transparent to the stimulation signal and to the second and third luminescence signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.