Sensor and method for detecting guided thermal radiation
US12235170B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 8, 2022 |
| Grant date | Feb 25, 2025 |
| Priority date | — |
| Expiry date | Feb 10, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/552
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A fluid sensor includes a support structure having a top main surface region; a thermal emitter on the top main surface region of the support structure; a thermal radiation detector on the top main surface region of the support structure; and a waveguide structure having a first and a second waveguide section on the top main surface region of the support structure. The first waveguide section guides a first portion of the thermal radiation to the thermal radiation detector and the second waveguide section guides a second portion of the thermal radiation to the thermal radiation detector. The waveguide structure enables an interaction of an evanescence field of the guided first and/or second portion of the thermal radiation with a surrounding fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.