Method and device for the coarse differentiation between a liquid or a bulk material of a filling product present in a receptacle
US6725718B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 8, 2002 |
| Grant date | Apr 27, 2004 |
| Priority date | — |
| Expiry date | Feb 8, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F23/284
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Described is a method for a coarse differentiation between a liquid and a bulk material of a filling material present in a receptacle using a filling level measuring device that scans a reflected echo signal. The coarse differentiation is made in dependence on the width of the individual echoes of an envelope curve in an echo signal. Alternatively, the coarse differentiation may also be made in dependence on the number of equidistant echoes in an echo signal, or in dependence on the detection of a stirring apparatus. All these alternatives may also be combined with each other. Also described are devices and filling level measuring devices configured for the realization of the methods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.