Centre National De La Recherche Scientifique

European Aeronautic Defence and Space Company Eads France

Geoservices Equipements

Ecole Superieure D'electricite (supelec)

Jean-Claude Badot

Jean-Marie Tarascon

Bruno Viana

Bruno Le Briere

Lionel Beluze

Arlette Fourrier-Lamer

Olivier Dubrunfaut

Emmanuel Bondet De La Bernardie

Pierre-Yves David

Bruno Esmiller

A method and device includes measuring a multiple-phase fluid flowing through a pipe. The inventive method includes the following steps in which: a fluid is illuminated using a first coaxial probe placed in contact with the liquid phase of the fluid, and a first electromagnetic wave is emitted at a high frequency. The admittance at the interface between the first probe and the fluid is measured, and the fractions of at least two constituents of the liquid phase are calculated in order to obtain the effective permittivity (&#x2208;) of the phase. The method also includes the following steps in which: the fluid is illuminated using a second coaxial probe and a second electromagnetic wave is emitted at a low frequency. The admittance at the interface between the second probe and the liquid is measured, and the thickness (e) of the liquid is measured. The aforementioned calculation is performed on the basis of the calculated effective permittivity (&#x2208;) and the admittance measured by the second probe.

Method and device for analyzing a multiple-phase fluid by measuring admittance using coaxial probes

The invention concerns an electrochromic cell with emission controlled by electrodeposition under the action of a control voltage. The cell comprises the following flexible elements, superimposed and respectively in intimate contact:

Electrochemical cell with emission controlled by electrodeposition of copper

Growing community of inventors

Paris, France

Jean-Claude Badot