Patent ID: 11913814
Assignee: DR. JOHANNES HEIDENHAIN GMBH
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A position-measuring device comprising:
a carrier body having a first measuring graduation, a second measuring graduation, and a reference mark, the first measuring graduation including a plurality of graduation structures periodically arranged along a first measurement direction, the graduation structures of the first measuring graduation each extending parallel to a first direction, the second measuring graduation including a plurality of graduation structures periodically arranged along a second measurement direction, the first measurement direction and the second measurement direction being perpendicular to each other, and the reference mark extending in a second direction, the first direction and the second direction forming an angle different from 0° therebetween;
a first scanner configured to scan the first measuring graduation and generate first scanning signals;
a second scanner configured to scan the second measuring graduation and generate second scanning signals; and
a third scanner configured to scan the reference mark and generate a reference pulse,
wherein the position-measuring device is configured such that a phase angle of the reference pulse is determined as a function of the first scanning signals and the reference pulse.