Device and method for dispensing or receiving a liquid volume

US9459128B2 · kind B2 · utility

Assignees

• Hahn-Schickard-Gesellschaft für Angewandte Forschung e. V. · DE
• Albert-Ludwigs-Universitaet Freiburg · DE

Inventors

• Peter Koltay · March, DE
• Andreas Ernst · Bollschweil, DE
• Chris Steinert · Luzern, CH
• Laurent Tanguy · Aix-en-Provence, FR

Key dates

• Filing date: May 31, 2013
• Grant date: Oct 4, 2016
• Expiry date: Feb 22, 2034

Classification

• Technology area (CPC G): Physics
• CPC primary: G01F11/029
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A device for dispensing or receiving a liquid volume includes a liquid reservoir having an outlet, a pressure generator which provides a compressible enclosed gas volume of a constant amount of substance with a pressure, wherein the gas volume is in direct or indirect fluidic contact with the liquid in the liquid reservoir, a dosing device coupled to the outlet of the liquid reservoir and operable in order to enable the liquid to pass the outlet, a pressure sensor arranged to measure a current pressure in the gas volume and to output an output signal indicating the current pressure in the gas volume and a controller coupled to the pressure generator, the dosing device and the pressure sensor.