Resonating rod

US4594891A · kind A · utility

Assignee

• VEGA Grieshaber KG · DE

Inventors

• Karl Benz · Schiltach, DE
• Gerhard Huber · Frankenhofen, DE

Key dates

• Filing date: Apr 22, 1983
• Grant date: Jun 17, 1986
• Expiry date: Apr 22, 2003

Classification

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

Abstract

A filling level measuring probe detects the filling level in a container by suppression of an oscillator by contact with a filling material. The oscillator consists of a hollow body 16, which can be connected through a shaft 14 and a screw-in part 12 with a container wall 10 and is set in oscillation with oscillations in the radial direction over a crosspiece 20 mounted in hollow body 16 by means of an electromechanical transducer 26 which is mounted on crosspiece 20. The oscillations are converted by a second electromechanical transducer 28 into an electric signal, of which the amplitude is changed with suppression of the oscillations as a result of contact of the hollow body 16 with the filling material.