Magnetic encoder system

US7141965B2 · kind B2 · utility

Assignee

• International Business Machines Corporation · US

Inventors

• Marcus Breuer · Oppenheim, DE
• Hubert Grimm · Mommenheim, DE
• Hans-Guenter Kraemer · Wittlich, DE
• Nikolaus Luckner · Ober-Olm, DE

Key dates

• Filing date: Nov 5, 2004
• Grant date: Nov 28, 2006
• Expiry date: Jan 29, 2025

Classification

• Technology area (CPC G): Physics
• CPC primary: G01D5/145
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

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.