Invention Grant
- Patent Title: Position-measuring device and method for operating the same
- Patent Title (中): 位置测量装置及其操作方法
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Application No.: US14028566Application Date: 2013-09-17
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Publication No.: US09303972B2Publication Date: 2016-04-05
- Inventor: Johann Oberhauser , Bernhard Schmied , Jannik Jens Rosenlehner-Emde , Werner Schwaiger , Thomas Schweizer , Hubert Mayer , Marc Oliver Tiemann
- Applicant: DR. JOHANNES HEIDENHAIN GmbH
- Applicant Address: DE Traunreut
- Assignee: DR. JOHANNES HEIDENHAIN GMBH
- Current Assignee: DR. JOHANNES HEIDENHAIN GMBH
- Current Assignee Address: DE Traunreut
- Agency: Leydig, Voit & Mayer, Ltd.
- Priority: DE102012216854 20120920
- Main IPC: G01B7/30
- IPC: G01B7/30 ; G01D5/244 ; G01D5/245 ; G06F1/00

Abstract:
A position-measuring device includes a code carrier having a first graduation track and a second graduation track, the second graduation track being an incremental graduation track. A first detector system is configured to scan the graduation tracks so as to generate first position signals. A second detector system is configured to scan the second graduation track so as to generate second position signals. A first position-processing unit is configured to process the first position signals so as to yield a first absolute position value. A second position-processing unit is configured to process the second position signals so as to yield a second absolute position value. The first position-processing unit is configured to feed an absolute auxiliary position value to the second position-processing unit. The second position-processing unit is initializable with the absolute auxiliary position value.
Public/Granted literature
- US20140077795A1 POSITION-MEASURING DEVICE AND METHOD FOR OPERATING THE SAME Public/Granted day:2014-03-20
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