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:
Jun. 01, 2010
Filed:
Dec. 22, 2004
Dierk Schoen, Egelsbach, DE;
Dierk Schoen, Egelsbach, DE;
Pepperl + Fuchs GmbH, Mannheim, DE;
Abstract
A method and device for the contactless detection of flat objects, particularly in sheet form, such as paper, films, foils, plates, labels, splices, break points, tear-off threads and similar flat materials or packs. A sensor device, such as a receiver-following evaluating device, is supplied with at least one correction characteristic, by means of which a measuring signal input voltage characteristic in the receiver is simulated as a function of the gram weight or weight per unit area of the flat objects as a target characteristic in such a way that there is obtained a linear or almost linear dependence or a characteristic approximated to the ideal single sheet detection characteristic in the form of a target characteristic.