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:
May. 17, 2005
Filed:
Sep. 05, 2001
Alain Dumont, Houston, TX (US);
Nicolas Renoux, Le Plessis Robinson, FR;
Philippe Salamitou, Mamaroneck, NY (US);
Alain Dumont, Houston, TX (US);
Nicolas Renoux, Le Plessis Robinson, FR;
Philippe Salamitou, Mamaroneck, NY (US);
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
The invention relates to a device for measuring an electrical parameter through electrically-conductive casing, said device including a current injection electrode () and a measurement electrode () on one side of the wall of the casing (). According to the invention, the injection electrode () is associated via a first magnetic coupler () with a current source () and the measurement electrode () is associated via a second magnetic coupler () with a measurement device () situated on the other side of the wall.