Fill-level measuring device and apparatus for determining the dielectric constant
US10001398B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 29, 2013 |
| Grant date | Jun 19, 2018 |
| Priority date | — |
| Expiry date | Nov 6, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F23/804
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A fill-level measuring device for determining the fill level of a process medium in a container by means of a travel-time method. The fill-level measuring device is distinguished by features including that the fill-level measuring device has structure for determining the dielectric constant of a second medium, which is located between the measuring device and the process medium. The structure for determining the dielectric constant comprises at least one waveguide for a high-frequency measuring signal, wherein such waveguide is filled at least sectionally with a dielectric and embodied and arrangeable in such a manner that the dielectric forms with the second medium an interface, at which a significant fraction of the measuring signal supplied to the second medium via the waveguide is reflected. Furthermore, an apparatus for determining the dielectric constant and a system of such an apparatus and a fill-level measuring device are proposed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.