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. 25, 1997
Filed:
Dec. 07, 1994
Applicant:
Inventors:
Patrice Giordano, Pertuis, FR;
Henri Glenat, Corenc, FR;
Jean-Michel Ittel, La Terrasse, FR;
Marcel Locatelli, Montbonnot, FR;
Assignee:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01V / ; G01N / ; G01R / ;
U.S. Cl.
CPC ...
324339 ; 324239 ; 324225 ;
Abstract
A microdevice is provided for measuring the electromagnetic characteristics of a medium in a borehole. The microdevice includes at least one emitting or transmitting coil (31), and at least one receiving coil (41,51). The microdevice generates an A.C. voltage at the terminals of the transmitting coil and measures a signal at the terminals of the receiving coil. The microdevice also includes an E-shaped electrically insulating, soft magnetic material circuit serving as a support for each of the coils and which is positioned adjacent to the medium in the borehole.