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. 24, 2009
Filed:
Sep. 09, 2005
Gabriel Daalmans, Hochstadt, DE;
Gabriel Daalmans, Hochstadt, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
An apparatus for detection of the gradient of a magnetic field includes at least four antenna elements () composed of a ferromagnetic material, which are arranged in pairs, and a bridge circuit having at least four resistance elements (), which are associated with the antenna elements () or antenna element pairs. Each antenna element pair has at least one associated resistance element () whose resistance value is dependent on the field strength and on the direction of the magnetic field, and which resistance element () is arranged in a field area () which extends between the two antenna elements () of the antenna element pair. The invention also relates to a method for production of an apparatus which is intended for detection of the gradient of a magnetic field.