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Title: Apparatus and method for imaging metallic objects using an array of giant magnetoresistive sensors

Abstract

A portable, low-power, metallic object detector and method for providing an image of a detected metallic object. In one embodiment, the present portable low-power metallic object detector an array of giant magnetoresistive (GMR) sensors. The array of GMR sensors is adapted for detecting the presence of and compiling image data of a metallic object. In the embodiment, the array of GMR sensors is arranged in a checkerboard configuration such that axes of sensitivity of alternate GMR sensors are orthogonally oriented. An electronics portion is coupled to the array of GMR sensors. The electronics portion is adapted to receive and process the image data of the metallic object compiled by the array of GMR sensors. The embodiment also includes a display unit which is coupled to the electronics portion. The display unit is adapted to display a graphical representation of the metallic object detected by the array of GMR sensors. In so doing, a graphical representation of the detected metallic object is provided.

Inventors:
 [1]
  1. (Fremont, CA)
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
873268
Patent Number(s):
US 6124712
Assignee:
Regents of University of California (Oakland, CA) LLNL
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
apparatus; method; imaging; metallic; array; giant; magnetoresistive; sensors; portable; low-power; detector; providing; image; detected; embodiment; gmr; adapted; detecting; presence; compiling; data; arranged; checkerboard; configuration; axes; sensitivity; alternate; orthogonally; oriented; electronics; portion; coupled; receive; process; compiled; display; unit; graphical; representation; provided; magnetoresistive sensor; image data; giant magnetoresistive; display unit; /324/

Citation Formats

Chaiken, Alison. Apparatus and method for imaging metallic objects using an array of giant magnetoresistive sensors. United States: N. p., 2000. Web.
Chaiken, Alison. Apparatus and method for imaging metallic objects using an array of giant magnetoresistive sensors. United States.
Chaiken, Alison. Sat . "Apparatus and method for imaging metallic objects using an array of giant magnetoresistive sensors". United States. https://www.osti.gov/servlets/purl/873268.
@article{osti_873268,
title = {Apparatus and method for imaging metallic objects using an array of giant magnetoresistive sensors},
author = {Chaiken, Alison},
abstractNote = {A portable, low-power, metallic object detector and method for providing an image of a detected metallic object. In one embodiment, the present portable low-power metallic object detector an array of giant magnetoresistive (GMR) sensors. The array of GMR sensors is adapted for detecting the presence of and compiling image data of a metallic object. In the embodiment, the array of GMR sensors is arranged in a checkerboard configuration such that axes of sensitivity of alternate GMR sensors are orthogonally oriented. An electronics portion is coupled to the array of GMR sensors. The electronics portion is adapted to receive and process the image data of the metallic object compiled by the array of GMR sensors. The embodiment also includes a display unit which is coupled to the electronics portion. The display unit is adapted to display a graphical representation of the metallic object detected by the array of GMR sensors. In so doing, a graphical representation of the detected metallic object is provided.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {1}
}

Patent:

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