Potential separation for filling level radar

US7548072B2 · kind B2 · utility

Assignee

• VEGA Grieshaber KG · DE

Inventors

• Karl Griessbaum · Nettetal, DE
• Juergen Motzer · Gengenbach, DE
• Thomas Deck · Wolfach, DE
• Josef Fehrenbach · Lenzkirch, DE
• Winfried Rauer · Fischerbach, DE

Key dates

• Filing date: Jan 18, 2007
• Grant date: Jun 16, 2009
• Expiry date: Jul 21, 2027

Classification

• Technology area (CPC G): Physics
• CPC primary: G01S13/88
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Both in potential separation in the microwave path, and in potential separation directly between the two-wire loop and the output circuit, the quality of signal transmission may be negatively affected. A filling level radar device with potential separation within the electronics unit is stated, wherein potential separation does not separate analogue signals but instead separates digital signals or direct-current-free alternating signals. For example, the separation line leads through digital signal connections or alternating-voltage signal connections. As a result of this the expenditure for potential separation may be reduced and the transmission quality may be improved.