Apparatus and method for imaging metallic objects using an array

Details Apparatus and method for imaging metallic objects using an array Apparatus and method for imaging metallic objects using an array

1997-05-16

2000-09-26

Patidar, Jay

Electricity: measuring and testing

Of geophysical surface or subsurface in situ

For small object detection or location

G01V 308

Patent

active

06124712&

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.

REFERENCES:
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patent: 5296807 (1994-03-01), Kousek et al.
patent: 5321361 (1994-06-01), Goodman
patent: 5557277 (1996-09-01), Tricoles et al.
patent: 5818227 (1998-10-01), Payne et al.

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