Method and system for continuous position detection of...

Details Method and system for continuous position detection of... Method and system for continuous position detection of...

2006-06-29

2009-11-03

Aurora, Reena (Department: 2858)

Electricity: measuring and testing

Magnetic

Magnetometers

C455S575300

Reexamination Certificate

active

07612559

ABSTRACT:
The invention relates to a method and system for continuous position detection using a contact-free detection technology. An arrangement includes a magnetic field source and magnetometer sensor, where the magnetic field source is adapted to generate a first magnetic field density and a sequential second magnetic field density determined by said magnetometer sensor. The sign of the determined first magnetic field generated by said magnetic field source is opposite than the second determined magnetic field generated by said magnetic field source. In addition the arrangement is adapted to compensate an offset drifting caused by the magnetic field environment and to determine a distance between the magnetic field source and magnetometer sensor based on the difference of the first magnetic field density and the sequential second magnetic field density determined by said magnetometer sensor.

REFERENCES:
patent: 5525907 (1996-06-01), Frazier
patent: 7285951 (2007-10-01), Lescourret

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