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. 22, 2011
Filed:
Sep. 30, 2009
Francis Dams, Kessel-Lo, BE;
Frank Seutens, Sint Huibrechts Lille, BE;
Robert C. Whitaker, Chesterfield, GB;
Francis Dams, Kessel-Lo, BE;
Frank Seutens, Sint Huibrechts Lille, BE;
Robert C. Whitaker, Chesterfield, GB;
Heraeus Electro-Nite International N.V., Houthalen, BE;
Abstract
A method is provided for measuring a parameter of a molten metal bath by an optical fiber surrounded by a cover. The optical fiber is immersed in the molten bath, and the radiation absorbed by the optical fiber in the molten bath is fed to a detector, wherein the optical fiber is heated when immersed in the molten bath. The heating curve of the optical fiber has at least one point P(t, T), wherein the increase ΔTin the temperature T of the optical fiber over the time Δt in a first time interval t−Δt up to the temperature Tis smaller than the increase ΔTin the temperature of the optical fiber over the time Δt in an immediately following second time interval t+Δt.