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:
Nov. 15, 2016
Filed:
Apr. 19, 2011
Sorin Fericean, Leonberg, DE;
Martin Osterfeld, Schlaitdorf, DE;
Sorin Fericean, Leonberg, DE;
Martin Osterfeld, Schlaitdorf, DE;
Balluff GmbH, Neuhausen/Filder, DE;
Abstract
The invention relates to a method for operating a distance sensor (). In the method, a transmission signal (S) is radiated as transmission radiation (S), reflected as reflection radiation (S) by an object (), the distance (D) of which is to be measured, and received as a reflection signal (S). The reflection signal (S) present at a receiver input () and a reference signal likewise occurring at the receiver input () are controlled to a specified ratio, the distance (D) being determined during the adjusting process. The invention further relates to devices for performing the method. The method is characterized in that microwaves are used as the transmission radiation (S) and a cross-talk signal (S, S) from the transmission signal (S) directly to the receiver input () with suppressed radiation of the transmission signal (S) is used as the reference signal.