The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 26, 2013
Filed:
Jun. 19, 2009
Method of measuring the flow rate of a liquid flowing in a fluidic channel and implementation device
Jean-luc Achard, Grenoble, FR;
Pierre Joly, Grenoble, FR;
Jean-maxime Roux, Grenoble, FR;
Commissariat a l'Energie Atomique et aux Energies Alternatives, Paris, FR;
Centre National de la Recherche Scientifique, Paris, FR;
Biomerieux, March-l'Etoile, FR;
Abstract
The present invention provides a method of measuring the flow rate of an electrically conductive liquid in laminar flow and to an implementation measurement device that are easy to implement, simple to produce and compact. For this purpose, the invention provides a device for measuring the flow rate, comprising: a channel (); a pair of electrodes (-); and at least one device () for measuring the voltage (V) between the electrodes (-) of said pair, an electrical double layer forming at the interface of each electrode with the conducting liquid. The device comprises means () designed so that, when the conducting liquid is flowing through the channel, the flow velocity fields in the diffuse layers facing each electrode are different and so that the convective/diffusive charge equilibria of the electrical double layer at the interface of each electrode are different.