Patent · US Active

Rotary encoder comprising internal error control and method therefor

US8620619B2 · kind B2 · utility

0Cited by

3References

20Claims

0Family size

Assignee

Baumer Hübner GmbH · DE

Inventors

Bernhard Hiller · San Jose, US
Jochen Wilhelmy · Berlin, DE
Roland Kirchberger · Graz, AT

Key dates

Filing date	Nov 4, 2008
Grant date	Dec 31, 2013
Priority date	—
Expiry date	Feb 17, 2030

Classification

Technology area (CPC G)Physics
CPC primaryG01D5/2451
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The invention relates to a rotary encoder comprising internal error control with a monitoring unit comprising at least a computing module, a verification means, a memory unit and an alarm unit. The invention also relates to a method for checking a rotary encoder when said encoder is in operation, the rotary encoder generating at least one measuring signal pair representative of the amount of rotation. In order to be able to determine the functioning of the rotary encoder, even when said rotary encoder is stationary, it is provided according to the present invention that a characteristic value should be created in the monitoring unit from current amplitude values of the measuring signal pair, said characteristic value being used in a comparison with at least one quality value representative of the functional states of the rotary encoder.

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