Dr. Johannes Heidenhain Gmbh

Christian Callimici

Jan Braasch

Sebastian Tondorf

Michael Allgauer

Sascha Weikert

A device for detecting six components of the relative motion of two bodies during a primarily two-dimensional translatory basic motion is described. The device has a plate which is provided with a two-dimensional, optical grating, and which is equipped with a plurality of vertically arranged devices for distance measuring. A second element which is composed of an arrangement of two or three optical gratings, and a plane surface which is parallel to the gratings is included. The optical gratings permit a detection of the relative displacements in X- and Y- directions parallel to the lower plate via an evaluation of the variations in intensity of the reflected light.

Device for detecting the position of two bodies

An optical position measuring device, in particular for a drive for precise positioning, is recited, which comprises two drive units which are movable in respect to each other, wherein one of the two drive units has a graduation as an integral component. The latter can be scanned by a scanning unit connected with the other drive unit for generating position-dependent output signals. The graduation is directly or indirectly disposed on a level surface of the drive unit, from which a distance between the two drive units is created in such a way that by the cooperation of the two drive units the generation of a defined relative movement between the two drive units is possible.

Optical position measuring device

A guide assembly to be mounted on a machine-tool or a measuring machine and including a guide rail mountable in the machine-tool or the measuring machine as an independent structural element, and a linear encoder mountable on the guide rail as a separate unit before mounting of the guide rail in the machine-tool or the measuring machine.

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Miesbach, Germany

Christian Callimici