Rotary encoder, and method of manufacturing same

Details Rotary encoder, and method of manufacturing same Rotary encoder, and method of manufacturing same

1987-05-06

1989-06-27

Shoop, Jr., William M.

Coded data generation or conversion

Digital pattern reading type converter

Magnetic, inductive or capacitive

360 7706, H03M 124

Patent

active

048433888

ABSTRACT:
A rotary encloder includes a rotary disk for rotating by an amount proportional to movement of an object under control and having a magnetic body on a surface thereof, and a write/read head arranged at a position opposing the rotary disk on a radius of rotation thereof for writing position information into the magnetic body on the surface of the rotary disk and for reading written information from the magnetic body. The object is positioned at a control position, control position information for controlling the object is written by a writing portion of the magnetic head at a corresponding position on the rotary disk, and the written control position information is subsequently detected by a reading portion of the magnetic head, thereby detecting arrival at a control position of the object.

REFERENCES:
patent: 4543621 (1985-09-01), Lindberg et al.

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