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:
Mar. 28, 2017
Filed:
Feb. 02, 2012
Gerd Reime, Bühl, DE;
Gerd Reime, Bühl, DE;
Other;
Abstract
A method of locating metal or non-metal containing objects and materials includes regulating currents in at least two emission coils in relation to each other. A reception coil output signal is received by at least one reception coil or average values of demodulation phases generated from the reception coil output signal are regulated in relation to each other continuously to be zero even when exposed to metal. The amplitude(s) of the required controlled variables are detected as a value by demodulation, preferably at least at 0° and at a demodulation which is set off by 90° and are equalized, thereby allowing a reliable detection of an object to be detected even if other metal objects are present in the area of detection.