Dr. Johannes Heidenhain Gmbh

Johannas Heidenham Gmbh

Mathias Hausschmid

Johann Streitwieser

Wolfgang Holzapfel

Jörg Drescher

Herbert Huber-Lenk

Herbert Reiter

Erwin Spanner

Rainer Hagl

Robert Wastlhuber

J&uuml;rgen Thiel

Jurgen Thiel

Roman Angerer

Jürgen Thiel

Tobias Hubner

Jens-Martin Göhre

Jürgen GÜNTERT

Florian Oberlechner

A method for position determination that includes generating first and second position-dependent scanning signals, transmitting the first and second position-dependent scanning signals from a scanning location via corresponding first and second scanning channels to corresponding first and second storage elements, storing corresponding first and second instantaneous values present at the first and second storage elements at corresponding first and second storage times. Forming a measured position value from the first stored instantaneous value and the second stored instantaneous value. A difference exists between corresponding first and second transit times of the first and second position-dependent scanning signals in the corresponding first and second scanning channels, the difference is compensated by individually delaying the first and second position-dependent scanning signals, so that the stored first and second instantaneous values have appeared at a common time at the scanning location.

Method for determining a position and position measurement device for carrying out the method

A position measuring system that includes a scale and a scanning device that scans the scale. A light source, which emits a light pulse upon receipt of a request signal and an optical fiber that transmits the light pulse from the light source to the scanning device and for illuminating the scale. At least one photo detector that detects the light pulse affected by the scale as a function of its position.

Method for measuring position and position measuring device for carrying out said method

A method for position determination in a position measuring device that includes digitizing analog position data from a detector unit within time intervals of an internal clock rate and calculating position data from the digitized data. Determining a period of time &#x394;t between a pulse of the internal clock until an appearance of an external trigger signal and a processing of at least two position data, together with the period of time &#x394;t.

Position measuring device and method for determining a position

A method for the incremental position determination of two objects, which are movable in relation to each other. The method including generating at least one pair of position-dependent incremental scanning signals during a position determination between two objects, which have a defined phase offset from each other. Passing the at least one pair of position-dependent incremental scanning signals on to a transformation table in which one or several output signal values with respect to each pair of the at least one pair of position-dependent incremental scanning signals have been stored. Transferring the one or several output signals from the transformation table to an evaluation unit wherein position determination between the two objects is performed. Dynamically updating the transformation table during the position determination between the two objects.

Method and device for incremental position determination

A position measuring system for the determination of the relative positions of two objects which can be moved with respect to each other, as well as a process for operating the same are disclosed, which in case of a relative movement provides at least one pair of phase-shifted analog incremental signals, and which makes possible a definite variation of the signal periods (SP) by at least one signal period variation factor (n) of the analog incremental signals transmitted to an evaluation unit arranged behind it by a signal period variation unit. The signal period variation unit furthermore comprises correction means for eliminating most varied errors in the output signals (SIN&prime;, COS&prime;). Among these are counted errors possibly resulting during the signal period variation, as well as measurement arrangement-specific errors.

Position measuring system and method for operating a position measuring system

A position measuring system for the determination of the relative positions of two objects which can be moved with respect to each other, as well as a process for operating the same are disclosed, which in case of a relative movement provides at least one pair of phase-shifted analog incremental signals, and which makes possible a definite variation of the signal periods (SP) by at least one signal period variation factor (n) of the analog incremental signals transmitted to an evaluation unit arranged behind it by a signal period variation unit. The signal period variation unit furthermore comprises correction means for eliminating most varied errors in the output signals (SIN', COS'). Among these are counted errors possibly resulting during the signal period variation, as well as measurement arrangement-specific errors.

Position measuring system and method for operating a position measuring

Growing community of inventors

Palling, Germany

Mathias Hausschmid