Patent ID: 6571606
Filing Date: 2003-06-03
Classification: H01R

Abstract:
A device for connecting at least one electrode to a measuring device outside a wall of a cell with a cable provided with a shield and a core, the cell measuring resistivity index variations of a porous solid sample embedded in a sheath and subjected to a radial pressure by injection of a liquid under pressure into a body of the cell, the resistivity index variations resulting from a forced displacement of a first fluid out of the sample by injection of a second fluid, one of the fluids being electricity conductive and one of the fluids being electrically non conductive, the at least one electrode being disposed between the sample and the sheath and including an extension running through the sheath, comprising:at least one insulating tubular sleeve extending toward the sheath, fastened to the wall and running through the wall, each tubular sleeve including an inner cavity into which the shielded cable passes, an electrically conductive tube disposed in the tubular sleeve and in electrical contact with the shield of the cable, an electrical connection comprising a plug connected to the at least one electrode with a baseplate fitting into the inner cavity of the tubular sleeve and electrically connected with the core of the cable inside the tube, and a seal, associated with the tubular sleeve and with the electric connection, which insulates an inside of the cell from an outside of the cell and the inner cavity of the tubular sleeve.