Patent · US Active

Cylindrical grating rotation sensor

US8345259B2 · kind B2 · utility

7Cited by

5References

14Claims

0Family size

Assignee

SICK STEGMANN GMBH · DE

Inventors

Olivier Parriaux · Saint-Étienne, FR
Yves Jourlin · Orange, FR
Nikolay Lyndin · Moscow, RU

Key dates

Filing date	Mar 22, 2010
Grant date	Jan 1, 2013
Priority date	—
Expiry date	May 28, 2031

Classification

Technology area (CPC G)Physics
CPC primaryG01D5/3473
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Disclosed is a Rotation sensor with a light source, a light detector, an internal part having a first lateral surface, which is globally cylindrical and convex, and an external part having a second lateral surface which is globally cylindrical and concave. The first and second lateral surfaces both have a same central axis defining a rotation axis for a relative rotation between the internal part and the external part the angle of which this rotation sensor can measure. A first grating is arranged at the first lateral surface with its grating lines parallel to the rotation axis, and a second grating is arranged at the second lateral surface with its grating lines parallel to said rotation axis.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.