Method and device for determining and/or monitoring the level of a medium in a container, or for determining the density of a medium in a container

US6845663B2 · kind B2 · utility

Assignee

• Endress+Hauser Inc. · DE

Inventors

• Sergej Lopatin · Lörrach, DE
• Alexander Muller · Steinen, DE

Key dates

• Filing date: Nov 13, 2001
• Grant date: Jan 25, 2005
• Expiry date: Nov 13, 2021

Classification

• Technology area (CPC G): Physics
• CPC primary: G01F23/2967
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The invention relates to a method and a device for determining and/or monitoring the fill level (F) of a medium in a container or, respectively, to a method and a device for establishing the density (ρ) of a medium in the container. The invention allows a highly accurate determination or monitoring of the fill level (F) or the density of a medium in a container. With reference to the method, the object is solved in that the influence of at least one disturbing parameter on the oscillation frequency of an oscillation-capable unit is established and correspondingly compensated in the determination of the fill level (F) of the medium in the container or, respectively, in the determination of the density (ρ) of the medium in the container.