Optischer Encoder mit passivem Lesekopf mit kontaktloser Fernerregung und Signalmessung

Details

Veröffentlichungs-Nr.

EP2541216

Aktenzeichen

EP12174586

Anmeldetag

2. Juli 2012

Veröffentlichung

26. November 2014

Rechtsraum

EP

IPC

G01D5/26G01D5/38

Abstract

An optical encoder system (100) with a passive readhead (110) is provided. The passive readhead does not have an attached cable and is an all optical readhead where the measurement position information relative to a scale (80) is read remotely by direct line-of-sight optical transmission to a remote companion system (180). The remote companion system includes a light source (181) and a sensing portion (182). In one embodiment, the sensing portion may comprise a remote lens portion and a photodetector arrangement. The remote companion system is configured to optically sense intensities of imaged regions from the passive readhead, and to output a plurality of signals indicative of the measurement position based on the sensed intensities.

Anmelder

Firma

Mitutoyo Corporation

Land

🇯🇵 Japan

Fachgebiete