Method and device for the detection of the movement of an...

Details Method and device for the detection of the movement of an... Method and device for the detection of the movement of an...

2006-03-14

2006-03-14

Gray, David M. (Department: 2863)

Data processing: measuring, calibrating, or testing

Measurement system

Orientation or position

C702S151000, C702S056000

Reexamination Certificate

active

07013233

ABSTRACT:
The invention proposes a method for detecting the motion of an element relative to a sensor device, in which signals (7to15) are evaluated as a function of a pulse generator (1) that is moved past the sensor (3, 4, 5). The signals (7, 8; 10, 11; 13, 14) of two sensor elements (4, 5) disposed next to each other in the movement direction are detected, wherein in order to detect vibrations perpendicular to the movement direction, the phase responses of the signals (7, 8; 10, 11; 13, 14) of the individual sensor elements (4, 5) and of the differential signals (9; 12; 15) of the individual sensor elements (4, 5) are evaluated as to whether all three signals are in phase.

REFERENCES:
patent: 5202842 (1993-04-01), Suzuki
patent: 5253531 (1993-10-01), Walker et al.
patent: 5451891 (1995-09-01), Tanabe
patent: 5541859 (1996-07-01), Inoue et al.
patent: 2002/0019710 (2002-02-01), Henry et al.
patent: 198 23 089 (1998-12-01), None
patent: 197 50 304 (1999-05-01), None

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