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US 6,470,577 B1Granted
Angle measuring system and use of this angle measuring system in a spindle arrangement
AssigneeDr. Johannes Heidenhain GmbH
InventorsSebastian Tondorf, Wolfgang Holzapfel
Life of this patent
Estimating the term…
Abstract
An angle measuring device having a graduation carrier, a scanning plate, a detector arrangement on a stationary element for measuring a rotational position of the graduation carrier with respect to the scanning plate around a first axis of rotation, wherein the scanning plate with the graduation carrier is rotatable with respect to the detector arrangement around a second axis of rotation; and the first and second axes of rotation extend parallel with respect to each other and are radially distanced from each other.
Claims21
An angle measuring device comprising:
- a graduation carrier which is rotatable around a first axis of rotation;
- a scanning plate fixed on a base body, the scanning plate is rotatable around a second axis of rotation independent of a rotational position of the graduation carrier;
- a detector arrangement on a stationary element for measuring a rotational position of the graduation carrier with respect to the scanning plate around the first axis of rotation;
- wherein the base body, the scanning plate and the graduation carrier are rotatable with respect to the detector arrangement around the second axis of rotation;
- and
- the first and second axes of rotation extend parallel with respect to each other and are radially distanced from each other.
3 more elements
A spindle arrangement, comprising:
- a stationary machine element;
- a base body seated in the stationary machine element and is rotatable around a spindle axis;
- a carrier seated in the base body and is rotatable around a carrier axis in the base body, wherein both the spindle axis and the carrier axis extend parallel with each other and are radially distanced from each other;
- a scanning plate fixed on the base body;
- a graduation carrier on the carrier;
- a detector arrangement arranged on the stationary machine element for measuring a rotational position of the graduation carrier with respect to the scanning plate around the carrier axis;
- and
- wherein the base body, the scanning plate and the graduation carrier are rotatable with respect to the detector arrangement around the spindle axis.
5 more elements
Dependencies are inferred from the claim text.