Material detection and analysis using a dielectric waveguide
US10018576B2 · kind B2 · utility
107Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 30, 2014 |
| Grant date | Jul 10, 2018 |
| Priority date | — |
| Expiry date | Jun 23, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N22/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A dielectric waveguide (DWG) may be used to identify a composition of a material that is in contact with the DWG. A radio frequency (RF) signal is transmitted into a dielectric waveguide located in contact with the material. The RF signal is received after it passes through the DWG. An insertion loss of the DWG is determined. The presence of the material may be inferred when the insertion loss exceeds a threshold value. The composition of the material may be inferred based on a correlation with the insertion loss. Alternatively, a volume of the material may be inferred based on a correlation with the insertion loss.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.