Position measuring device and method for operating a position measuring device
AssigneeDr. Johannes Heidenhain GmbH
InventorsIngo Joachimsthaler, Johannes Soier
Life of this patent
Estimating the term…
Abstract
A position measuring device includes a scale carrier with a measuring scale. A scanner is configured to generate position signals by scanning the measuring scale. A processor is configured to process the position signals into a digital position value. An interface is configured to communicate with downstream electronics. At least one collision sensor is assigned to the position measuring device, and is configured to generate analog or digital measured values from a time characteristic of which collision events are determinable. The measured values are fed to an evaluator configured to determine the collision events by evaluating the time characteristic of the measured values in a controller.
Claims20
A position measuring device, comprising:
- a scale carrier with a measuring scale;
- a scanner configured to generate position signals by scanning the measuring scale;
- a processor configured to process the position signals into a digital position value;
- and
- an interface configured to communicate with downstream electronics,
- wherein at least one collision sensor is assigned to the position measuring device, the at least one collision sensor being configured to generate analog or digital measured values and to feed the measured values to an evaluator that is configured to determine collision events by evaluating a time characteristic of the measured values using a controller, and
- wherein the measured values are taken in accordance with a sampling clock frequency, and wherein the interface is configured to communicate the position values to the downstream electronics.
A method for operating a position measuring device, comprising:
- scanning, by a scanner of the position measuring device, a scale carrier with a measuring scale on a scale carrier so as to generate position signals;
- processing, by a processor of the position measuring device, the position signals into a digital position value;
- communicating, by an interface of the position measuring device, with downstream electronics;
- generating, by at least one collision sensor assigned to the position measuring device, analog or digital measured values;
- and
- feeding the measured values to an evaluator in which collision events are determined by evaluating a time characteristic of the measured values using a controller,
- wherein the measured values are taken in accordance with a sampling clock frequency, and wherein the interface is configured to communicate the position values to the downstream electronics.
Dependencies are inferred from the claim text.