摘要 |
The invention relates to a position measurement device, wherein an absolute position measuring value (P) is formed by interpolation from several phase-shifted scanning signals (S1, S2, S3). The position measuring value (P) is formed, during movement of an object to be measured, from stored instantaneous values of the scanning signals (S1, S2, S3). In order to compensate for differing propagation times of the scanning signals (S1, S2, S2) from the point of scanning (A) to the memory elements (13, 14, 15), the instantaneous values are stored at different points in time in a time-delayed manner.
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申请人 |
DR. JOHANNES HEIDENHAIN GMBH |
发明人 |
DRESCHER, JOERG;HAUSSCHMID, MATHIAS;HUBER-LENK, HERBERT;REITER, HERBERT;STREITWIESER, JOHANN;HOLZAPFEL, WOLFGANG |