Device for measuring bulk flow

US5351558A · kind A · utility

Assignee

• Claas oHG · DE

Inventors

• Klaus Horn · Dortmund, DE
• Horst Weigelt · Vellmar, DE
• Stefan Bottinger · Bielefeld, DE

Key dates

• Filing date: Feb 18, 1992
• Grant date: Oct 4, 1994
• Expiry date: Feb 18, 2012

Classification

• Technology area (CPC G): Physics
• CPC primary: G01F1/76
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A measuring device with a measuring capacitor (C1), through which a bulk flow (KS) is conducted in the form of a layered dielectric. The capacitance measurement signal of the measuring capacitor (C1) is supplied via a signal evaluation circuit (M1) and an analog-digital converter (ADU) to an evaluation processor (MP) and there is calculated together with a velocity signal (Sv) to form a bulk flow value, which is supplied to a display (A). A reference capacitance signal is obtained at a filled second measuring capacitor (C2). The device is suitable in connection with harvesters.