Absolute encoder setup indication
AssigneeRenishaw PLC
InventorsAndrew Paul Gribble, Iain Robert Gordon-Ingram
Life of this patent
Estimating the term…
Abstract
This invention relates to a method of operating an absolute encoder apparatus comprising a scale having features defining absolute position information in at least one measuring dimension, and a readhead configured to read the features. The method comprises: obtaining at least one representation of at least some of the features defining absolute position information; analyzing the at least one representation to determine at least one parameter indicative of the quality of the representation; and providing an output indicative of the relative setup of the scale and readhead based at least in part on the at least one parameter.
Claims25
A method of operating an absolute encoder apparatus, the encoder apparatus comprising a scale having features defining absolute position information in at least one measuring dimension, and a readhead configured to read the features, the method comprising:
- obtaining at least one representation of at least some of the features defining absolute position information;
- analysing the at least one representation to determine at least one parameter indicative of the quality of the representation;
- and providing an output indicative of the relative setup of the scale and readhead based at least in part on the at least one parameter.
An absolute encoder apparatus comprising a scale having features defining absolute position information in at least one measuring dimension, and a readhead configured to read the features, in which the apparatus is configured to:
- obtain, via the readhead, at least one representation of at least some of the features;
- analyse the at least one representation to determine at least one parameter indicative of the quality of the representation;
- and provide an output indicative of the relative setup of the scale and readhead based at least in part on the at least one parameter.
A readhead for an absolute encoder apparatus, comprising:
- at least one sensor for obtaining at least one representation of at least some of the features;
- circuitry configured to analyse the at least one representation to determine at least one parameter indicative of the quality of the representation;
- and an output device for providing an output indicative of the relative setup of the scale and readhead based at least in part on the at least one parameter.
Dependencies are inferred from the claim text.