Method and device for detecting a filing process

US6829932B2 · kind B2 · utility

Assignee

• VEGA Grieshaber KG · DE

Inventors

• Robert Laun · Hausach, DE
• Dieter Haas · Bruchköbel, DE

Key dates

• Filing date: Jul 25, 2002
• Grant date: Dec 14, 2004
• Expiry date: Jul 25, 2022

Classification

• Technology area (CPC G): Physics
• CPC primary: G01F23/284
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

In order to detect a filling process, a signal is emitted into the container and an echo reflected from the container is recorded. At least one parameter, e.g., the amplitude h(t) of the reflected echo at a time t, is determined, and a filling process is detected if the parameter lies outside an expected range.