Cover Image

Magnetic modeling of a rotating flux concentrator system designed to mitigate noise in large magnetic sensors /

This report discusses the magnetic modeling results of a proof of concept system for 1/f noise mitigation in "large" sensors. The 1/f noise reduction is achieved by rotating flux concentrators that shift the operating frequency of the sensor to higher frequencies where 1/f noise is lower....

Full description

Bibliographic Details
Main Author: Fischer, Gregory A.
Corporate Authors: United States. Defense Advanced Research Projects Agency, U.S. Army Research Laboratory
Other Authors: Edelstein, A. S. (Alan S.)
Format: Government Document eBook
Language:English
Published: Adelphi, MD : Army Research Laboratory, [2010]
Series:ARL-TR (Aberdeen Proving Ground, Md.) ; 5317.
Subjects:
Magnetic & electric fld detection and detectors.
Magnetic detectors.
Magnetic fields.
Optimization.
Models.
Concentration(composition)
Trade off analysis.
Modulation.
Rotation.
Frequency.
Flux(rate)
Magnetic flux.
Magnetic flux > Mathematical models.
Magnetic fields > Measurement.
Detectors.
MAGNETIC MODELING
Online Access:https://purl.fdlp.gov/GPO/gpo9243
Description
Summary:This report discusses the magnetic modeling results of a proof of concept system for 1/f noise mitigation in "large" sensors. The 1/f noise reduction is achieved by rotating flux concentrators that shift the operating frequency of the sensor to higher frequencies where 1/f noise is lower. The goal is to design systems with magnetic flux concentrators that maximize the enhancement of the field and the percentage modulation of the field but minimize size. These issues in execution and necessary tradeoffs in performance are discussed, and magnetic modeling is presented, showing a clear road map to increased performance from the viewpoint of field enhancement and modulation.
Item Description:Title from title screen (viewed June 28, 2011).
"September 2010."
Sponsoring agency: DARPA.
Electronic resource.
Physical Description:1 online resource (viii, 12 pages) : illustrations (some color).
Bibliography:Includes bibliographical references (page 11).
Access:APPROVED FOR PUBLIC RELEASE.