Fill level reflectometer having reference reflection

US11150122B2 · kind B2 · utility

Assignee

• VEGA Grieshaber KG · DE

Inventors

• Karl Griessbaum · Nettetal, DE
• Roland Welle · Oberwolfach, DE
• Bernhard Corbe · Schutterwald, DE

Key dates

• Filing date: Jun 18, 2018
• Grant date: Oct 19, 2021
• Expiry date: Feb 14, 2039

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01Q13/02
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A fill level radar device is provided, including two at least partially different signal source assemblies for heterodyne mixing of the received reflected signal of the filling material surface with a second signal in order to create an intermediate frequency signal having a uniform frequency that does not depend on the frequency of the first signal.