Position measuring device

The device has a code (C) e.g. chain code, with a sequence of code elements (C1-C3) consecutively arranged in a measuring direction (X). The code elements form a code word (CW) with absolute position information. A scanning device (AE) includes a detector unit (D) with detector elements (D1-D11) for...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MAYER, ELMAR, OBERHAUSER, JOHANN
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:The device has a code (C) e.g. chain code, with a sequence of code elements (C1-C3) consecutively arranged in a measuring direction (X). The code elements form a code word (CW) with absolute position information. A scanning device (AE) includes a detector unit (D) with detector elements (D1-D11) for scanning the code elements and for forming scanning signals (S1A-S3A, S1B-S3B). The scanning signal of the code elements is delivered to one of evaluation units (T1, T5, T9) for the appropriate code element. An adjusting device (R) determines a reference value based on one of the scanning signals. An independent claim is also included for a method for absolute position measurement.