International Business Machines Corporation

Nikolaus Luckner

Marcus Breuer

Hubert Grimm

Rolf Schaefer

Andreas Heinrich Dietzel

Hans-Guenter Kraemer

Karl-Heinz Lehnhert

Guenther Michaelis

A high-resolution magnetic encoder system includes a magnetic resistive sensor, a fixed suspension, and a mechanism. The magnetic resistive sensor is mounted to the fixed suspension above a magnetic medium having at least one magnetic track. The fixed suspension is attached to the mechanism, such as a housing, a substrate, and/or an electronic board. The sensor is adapted to perform a relative movement with respect to and in close contact to the surface of the magnetic medium. The magnetic medium may be protected by an overcoat layer. The magnetic resistive sensor may be Giant Magnetic-Resistive (GMR) sensor and/or a Tunneling Magnetic-Resistive Sensor (TMR).

High-resolution magnetic encoder

A magnetic encoder system according to one embodiment includes a magnetic sensor mounted on a first substrate above a magnetic medium, the magnetic medium carrying at least one magnetic track, the sensor detecting changes in the magnetic track during a relative movement between the sensor and the magnetic medium. The first substrate is provided with a second substrate rotatably engaging the magnetic medium.

Magnetic Encoder System wherein a first substrate is provided with a second substrate which rotatably engages the magnetic medium

Magnetic encoder system

Growing community of inventors

Ober-Olm, Germany

Nikolaus Luckner