Kodierer und Kodierungsverfahren für einen Gleitring

Details

Veröffentlichungs-Nr.

EP2889585

Aktenzeichen

EP14198143

Anmeldetag

16. Dezember 2014

Veröffentlichung

24. Mai 2017

Erteilung

24. Mai 2017

Rechtsraum

EP

IPC

G01D5/244G01D5/347H01R39/08

Abstract

Disclosed is an encoder and encoding method for slip ring. The encoder includes: an encoding belt (50) that is fixed to a slip ring and has a plurality of holes regularly arranged on the encoding belt; at least one pair of first sensors (52-1, 52-2, 54-1, 54-2) provided on one side of the encoding belt, wherein the first sensors of each pair generate a first sense signal (A1, B1) and a first redundant sense signal (A2, B2) respectively based on light emitted from the other side of the encoding belt and passing through the plurality of holes, when the encoding belt rotates with the slip ring; and at least one signal combiner (56, 58) connected to the at least one pair of the first sensors, and configured to combine the first sense signal and the first redundant sense signal to obtain a combined sense signal (A', B') as a first encoded signal. With embodiments of the present invention, a redundant signal is provided by using a redundant sensor, and it is possible to avoid interference of foreign substance, improve stability of encoded signals and ensure normal operation of equipment.

Anmelder

Firma

Nuctech Company Limited

Land

🇨🇳 China

Fachgebiete