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. 09, 2010
Filed:
Sep. 12, 2005
Koichi Matsumoto, Hachioji, JP;
Takeo Yamada, Kanagawa, JP;
Koichi Matsumoto, Hachioji, JP;
Takeo Yamada, Kanagawa, JP;
Nireco Corporation, Tokyo, JP;
Abstract
A microwave sending antennaR and a microwave receiving antennaR are provided to a right-side furnace wallR, and the system is devised so that the microwaves emitted from the microwave sending antennaR are reflected by the right-side edge of a cold-rolled steel plate, and the reflected waves are received by the microwave receiving antennaR. Similarly, a microwave sending antennaL and a microwave receiving antennaL are provided to a left-side furnace wallL, and the system is devised so that the microwaves emitted from the microwave sending antennaL are reflected by the left-side edge of the cold-rolled steel plate, and the reflected waves are received by the microwave receiving antennaL. If the time from the sending of the microwaves until the receiving of the reflected waves is designated as t, and the velocity of the microwaves is designated as c, then the distance to the object reflecting the microwaves is determined from t·c/2. It is possible to provide a method for measuring the width-direction end position of a material strip with which noise and atmosphere have little effect, installation is easy, and there is little mechanical interference with the material strip.