Maryland's Defense Patent Database

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Locating ferromagnetic objects in a single pass

Patent image
CCDC ARL

A ferromagnetic object is located by moving magnetic sensors along a path in an area of detection; using the sensors to measure a total magnetic field in the area of detection; using the sensors to measure all three vector components of magnetic field as the sensors travel along the path and passes the object; computing theoretical vector components of the total magnetic field in the area of detection; matching the measured vector components with the computed theoretical vector components of the total magnetic field; calculating an error measurement between matched measured vector components and computed theoretical vector components of the magnetic field; determining optimized values of parameters that minimize an error between the measured vector components and computed theoretical vector components of the magnetic field; and determining a position of the object based on the measured components of the magnetic field as a function of the optimized values.

Inventors: 
Edelstein, Alan S.
Patent Number: 
Technical domain: 
Sensors and Measurement
FIle Date: 
2007-09-10
Grant Date: 
2010-04-27
Grant time: 
960 days
Grant time percentile rank: 
17
Claim count percentile rank: 
5
Citations percentile rank: 
1
'Cited by' percentile rank: 
1
Assignee: 
US ARMY