Invention Grant
- Patent Title: Inductive position-measuring device for absolute position determination
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Application No.: US15356698Application Date: 2016-11-21
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Publication No.: US09958296B2Publication Date: 2018-05-01
- Inventor: Martin Heumann , Marc Oliver Tiemann , Alexander Frank
- 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: DE102015224589 20151208
- Main IPC: G01D5/20
- IPC: G01D5/20 ; G01D5/245

Abstract:
An inductive position-measuring device for absolute position determination includes a scale having a first measuring graduation extending in a measurement direction and a second measuring graduation disposed opposite to the first measuring graduation and extending parallel thereto. A scanner is disposed in a gap between the first measuring graduation and the second measuring graduation. The scanner is displaceable relative to the scale in the measurement direction for purposes of position measurement. The scanner includes a first coil arrangement for scanning the first measuring graduation and generating a first position-dependent scanning signal, and a second coil arrangement, disposed opposite to the first coil arrangement, for scanning the second measuring graduation and generating a second position-dependent scanning signal. At least one intermediate layer of soft magnetic material disposed between the first coil arrangement and the second coil arrangement.
Public/Granted literature
- US20170160102A1 INDUCTIVE POSITION-MEASURING DEVICE Public/Granted day:2017-06-08
Information query
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