Impedance Compensation Method for Giant Magneto-Impedance Magnetic Sensors to Null Out the Terrestrial Residual Magnetic Field

Abstract

The invention is a method, described with the appropriate auxiliary electronic circuitry, for compensating the effect of the earth s magnetic field on Giant Magneto-Impedance magnetic sensors. The method as taught is an alternate way of cancelling out the effect of the very large residual earth s magnetic field using an impedance-tuning circuit (i.e. electrical compensation) rather than the usual magnetic type of compensation.

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Document Details

Document Type
Technical Report
Publication Date
Oct 31, 2011
Accession Number
ADA557425

Entities

People

  • James D. Hagerty

Organizations

  • Naval Undersea Warfare Center

Tags

Communities of Interest

  • Advanced Electronics
  • Sensors

DTIC Thesaurus Topics

  • Capacitance
  • Capacitors
  • Circuits
  • Compensation
  • Detection
  • Detectors
  • Dynamic Range
  • Electrical Impedance
  • Electronic Circuits
  • Impedance
  • Magnetic Detectors
  • Magnetic Devices
  • Magnetic Fields
  • Manufacturing
  • Phase Detectors
  • Residuals
  • Three Dimensional

Fields of Study

  • Physics

Readers

  • Phased Array Antenna Design.
  • Superconducting Magnet Technology

Technology Areas

  • Microelectronics