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:
Oct. 31, 2006
Filed:
Dec. 04, 2003
Applicants:
Didier Frot, St. Germain-En-Laye, FR;
Françoise Guillou, Malmaison, FR;
Xavier Longaygue, Noisy le Roi, FR;
Inventors:
Didier Frot, St. Germain-En-Laye, FR;
Françoise Guillou, Malmaison, FR;
Xavier Longaygue, Noisy le Roi, FR;
Assignee:
Institut Francais du Petrole, Rueil Malmaison Cedex, FR;
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a device for detecting the corrosion induced by a medium on a structure. The device comprises a chamber () closed by a closing disc () made of such a material that the disc becomes permeable to the medium once corroded by the medium, and means for measuring the refractive index of the medium present in the chamber. According to a preferred embodiment, an optical fiber is used to measure the refractive index variation.