Method for monitoring and method for operating a fill level sensor system using the radar principle and a corresponding fill level sensor
US9128181B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 16, 2012 |
| Grant date | Sep 8, 2015 |
| Priority date | — |
| Expiry date | Jul 31, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/4091
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for monitoring the operability of a fill level sensor acting as a FMCW radar device in which the frequency of a radar signal to be sent from the fill sensor during measurement of a fill level of a medium is modulated with a set of pre-settable measuring parameters and a measured value of the fill level determined from at least one received signal received during measurement of the fill level. The method enables simple automatic monitoring of the operability of a fill level sensor acting as a FMCW radar device in that, during a test phase, the frequency of the radar signal to be sent is modulated with at least one set of pre-settable test parameters and a test measured value is determined from at least one test received signal received during the test phase, which is evaluated to establish the operability of the fill level sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.