Magnetic sensor device for the detection of the position of a mo

Details Magnetic sensor device for the detection of the position of a mo Magnetic sensor device for the detection of the position of a mo

1997-01-16

1999-10-19

Snow, Walter E.

Electricity: measuring and testing

Magnetic

Displacement

32420724, 341 15, 74335, G01B 714, H01H 3600, B60N 4100, H01L 4306

Patent

active

059695196

ABSTRACT:
An electrical signal transmitter intended for use in a motor vehicle is disclosed. The signal transmitter is provided with a magnetic sensor device for the detection of various positions of a movable vehicle part. To properly recognize a variety of positions, the movable part is connected with a correspondingly movable magnetic trigger member located on a holder. The trigger member has several magnetic tracks extending in the longitudinal direction of movement of the trigger member. Each magnetic track is provided with alternating N/S pole sections to provide a coding scheme. At least one magnetic field sensitive component is associated with each magnetic track to sense fields generated from the N/S pole sections. The at least one magnetic field sensitive component then generates a signal based on the sensed magnetic fields. The signal is indicative of the position of the magnetic trigger. The magnetic field sensitive components are operable with a switching arrangement which evaluates the signal to influence a device associated with the movable part.

REFERENCES:
patent: 3768094 (1973-10-01), Henrich
patent: 5307013 (1994-04-01), Santos et al.
patent: 5370015 (1994-12-01), Moscatelli

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