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:
Jul. 17, 2012
Filed:
Sep. 20, 2011
Alan Shane Edelstein, Alexandria, VA (US);
Alan Shane Edelstein, Alexandria, VA (US);
The United States of America as represented by the Secretary of the Army, Washington, DC (US);
Abstract
A system for modulating a magnetic field sensor device comprising: a base; a magnetic sensor comprising a plurality of magnetic components; at least one coil for creating a magnetic field around the magnetic sensor; the at least one coil adapted to be connected to an alternating current source that passes through the coil to modulate the magnetic field at the magnetic sensor and drive at least one of the magnetic components of the magnetic sensor into and out of its region of increased magnetic response while shifting the frequency of the magnetic field that is sensed by the magnetic sensors a higher frequency to thereby minimize 1/f-type noise, where f is the frequency of operation of the magnetic sensor. The method comprises forming at least one coil around the magnetic sensor; connecting the coil to an alternating current power source; and modulating the current from the power source.