Method of determining a disturbance echo profile for a radar level gauge system
US7924216B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 30, 2008 |
| Grant date | Apr 12, 2011 |
| Priority date | — |
| Expiry date | Apr 30, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/40
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of determining a filling level of a product contained in a tank, the method comprising generating and transmitting electromagnetic signals; propagating the transmitted electromagnetic signals towards a surface of the product contained in the tank; receiving echo signals resulting from reflections at impedance transitions encountered by the transmitted electromagnetic signals, including a surface echo signal resulting from reflection at a surface of the product; determining a position of a reference impedance transition using a reference echo signal resulting from reflection of the transmitted electromagnetic signals at the reference impedance transition; determining an update level located above the surface, based on the determined position of the reference impedance transition and a known position of the reference impedance transition; determining a disturbance echo profile using at least one of the echo signals resulting from reflection of the transmitted signals at at least one impedance transition located above the update level; and determining the filling level based on the received echo signals and the disturbance echo profile.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.