Patent · US Active

Absolute position-measuring device

US9733109B2 · kind B2 · utility

1Cited by

4References

14Claims

0Family size

Assignee

DR. JOHANNES HEIDENHAIN GMBH · DE

Inventors

Ernst Thielicke · Reutlingen, DE
Daniel Auer · Traunstein, DE
Erwin Bratzdrum · Traunstein, DE

Key dates

Filing date	Sep 23, 2014
Grant date	Aug 15, 2017
Priority date	—
Expiry date	Jan 12, 2036

Classification

Technology area (CPC G)Physics
CPC primaryG01D5/00
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A position-measuring device includes: a first subassembly having a measuring standard on which at least one coded track is provided, and a scanning unit, which is able to generate position signals that may be used to generate an absolute digital position value by scanning the at least one coded track in a measuring direction; a second subassembly having at least one peripheral unit adapted to execute a supplementary or an auxiliary functionality of the position-measuring device; and a plurality of electrical lines, which connect the first subassembly and the second subassembly to each other for the transmission of electrical signals. The position-measuring device is able to be operated in an initialization mode and in a standard operating mode. All components of the first subassembly required for the operation in the standard operating mode are components that are suitable for use in a radiation region of a machine. Furthermore, an initialization memory is provided in the first subassembly, which includes the data required for the operation in the standard operating mode and which is not suitable for use in a radiation region of a machine. In the initialization mode, the content of…

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