Method for monitoring the state of a fill level measuring device operating according to the radar principle
US9035823B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 12, 2012 |
| Grant date | May 19, 2015 |
| Priority date | — |
| Expiry date | Aug 6, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/40
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for monitoring the state of a fill level measuring device (1) operating according to the radar principle and such a fill level measuring device, wherein the fill level measuring device (1) has at least one transceiver unit (2) for transmitting and receiving electromagnetic signals, and at least one antenna (3) for guiding, radiating and receiving electromagnetic signals. The antenna (3) has at least one interior space (4), and wherein the antenna (3) has a transmission characteristic with regard to the transmission of electromagnetic signals. Electromagnetic signals are emitted or directed at least partially in the direction of a wall section (5) of the interior space (4) of the antenna (3), the received electromagnetic signals are evaluated with respect to the transmission characteristic of the antenna (3), and the result of the evaluation is compared to at least one stored reference value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.