Apparatus for determining a level and/or quality of a fluid in a fluid container

US11506529B2 · kind B2 · utility

Assignee

• VITESCO TECHNOLOGIES GMBH · DE

Inventors

• Philippe Grass · Regensburg, DE
• Stephan Heinrich · Freiberg, DE

Key dates

• Filing date: Jan 28, 2019
• Grant date: Nov 22, 2022
• Expiry date: Feb 2, 2039

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2291/045
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Various embodiments include determining a level of a surface of a fluid and/or for determining a quality of the fluid in a fluid container. An example apparatus comprises a sound transducer module having two sound transducers designed to receive and emit sound signals in such a manner that a superimposition sound signal results when the sound signals are superimposed, and a reference element arranged in the fluid at a predefined distance from the sound transducer module and is designed to reflect the superimposition sound signal. The sound transducer module is designed, by superimposing the at least two sound signals, to emit the superimposition sound signal both in a first direction to the surface of the fluid and in a second direction to the reference element, said second direction running at a predetermined sound signal angle with respect to the first direction.