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Assignee: Dr. Johannes Heidenhain GmbH


Location: Traunreut, DE
No. of patents: 548

1                      
NumberTitleIssue Date
8169619Detector element matrix for an optical position measuring instrument
A detector element array for an optical position measuring instrument, by way of such array a fringe pattern resulting in a detector plane can be converted into electrical scanning signals. The detector element array includes a plurality of light-sensitive detector ...
05/01/2012
8159681Measuring device for determining the relative offset between two components
A measuring device for determining the relative offset between two components in a z-direction includes two measuring members. A first measuring member is affixable on a first component, and the second measuring member is affixable on a second component. Furthermore...
04/17/2012
8156658Linear encoder
A linear encoder that includes a scale supporting a measurement graduation and an assembly that includes a support. The scale is fastened on the assembly by a fastener, wherein the fastener has a structure that makes a temperature-dependent linear expansion of the s...
04/17/2012
8154427Multiturn rotary encoder and method of operating a multiturn rotary encoder
A multiturn rotary encoder includes: a single-turn unit, including a code carrier and a single-turn evaluation unit for processing single-turn position signals to form a single-turn code word; a first multiturn unit, including at least one first multiturn code carri...
04/10/2012
8146259Rotary encoder and series of rotary encoders
A rotary encoder includes a stator and a rotor, the rotor being disposed in a manner allowing rotation relative to the stator with the aid of a bearing. The rotor has a shaft, a positive-locking device as well as a code disk being secured in rotatably fixed manner t...
04/03/2012
8081321Scanning unit of an optical position measuring arrangement and position measuring arrangement having this scanning unit
A scanning unit, by which a scale, which is movable in relation to the scanning unit in a measuring direction, can be optically scanned. The scanning unit including a detector arrangement and a transparent support having a first surface and a second surface, wherein...
12/20/2011
8032738Method for the start-up of numerical controls of machine tools or production machinery and numerical control for machine tools or production machinery
A method for the start-up of a numerical control of machine tools or production machinery, wherein the numerical control includes a main computer and a follow-up device, which are connected with each other via a data transmission network, wherein the follow-up devic...
10/04/2011
7925462Position-measuring device and method for transmitting information concerning movement
In a position-measuring device and a method for transmitting movement information from a position-measuring device to sequential electronics, the position-measuring device includes a position-measuring unit, a movement-measuring unit, an arithmetic logic unit and an...
04/12/2011
7907286Optical position-measuring device
An optical position-measuring device is arranged for recording the relative position of a scanning unit and a scale movable to it in at least one measuring direction. The scale is configured as a combined unit which includes at least one reflector element as well as...
03/15/2011
7903262Optical position measuring arrangement
A position measuring arrangement including a scale connected with a first object, wherein the scale includes a reference marking and a plurality of graduated areas, which are arranged a periodically in the measuring direction and have different optical properties. R...
03/08/2011
7847704Method and device for transmitting signals from a position measuring arrangement to an evaluation unit
A method for transmitting signals from a position measuring arrangement to an evaluation unit, the method including transmitting position signals, reference pulses, and warning signals indicating a malfunction state from a position measuring arrangement for determin...
12/07/2010
7873484Method for reliable position monitoring
A method for reliable position monitoring includes: (a) transmitting two measured position values from a position measuring device to a first processing unit; (b) transmitting a setpoint value from a setpoint value generator to a second processing unit; (c) transmit...
01/18/2011
7872762Optical position measuring arrangement
An arrangement for generating phase-shifted incremental signals characterizing relative positions of two objects moving with respect to each other along a measuring direction. The measuring arrangement includes a light source emitting bundles of beams, a measurement...
01/18/2011
7866023Arrangement for fastening a support of a scale and method for fastening the support, as well as a linear measuring device
An arrangement for fastening a support of a scale of a linear measuring device on a mounting surface of an object to be measured. The arrangement includes a clamping jaw and a force-exerting element urging the clamping jaw against the support. The clamping jaw acts ...
01/11/2011
7858922Position-measuring device
A position-measuring device includes a scanning unit and a measuring graduation that is displaceable thereto in at least one measuring direction. The measuring graduation includes two incremental-graduation tracks extending in parallel in the measuring direction, be...
12/28/2010
7856734Linear measuring arrangement
A linear measuring arrangement for measuring a relative position of two objects, the linear measuring arrangement including guide surfaces, a scale having a measuring graduation and a scanning carriage for scanning the measuring graduation, wherein the scanning carr...
12/28/2010
7835014Position measuring arrangement
A method for absolute position measuring that includes scanning a code having code elements arranged one behind the other in a measuring direction, wherein the code elements include sequential first and second code elements which define a code word containing absolu...
11/16/2010
7805541Modular numerical control having low-jitter synchronization
A modular, numerical control having low-jitter synchronization includes a main computer and at least one controller unit which, starting from the main computer, are interconnected by serial data-transmission channels in the form of a series circuit. The at least one...
09/28/2010
7796272Position-measuring device for measuring a position of an object relative to a tool having a tool centerpoint
A position-measuring device is used for measuring the position of an object relative to a tool, the tool having a tool center point. The position-measuring device includes at least two intersected scales displaceable relative to each other in at least one plane of m...
09/14/2010
7788821Length measuring arrangement
A linear measuring arrangement for measuring a relative position of two objects. The linear measuring arrangement includes a unit having a housing and a scale in the housing and a scanning unit, which can be shifted relative to the unit in a measuring direction, whe...
09/07/2010
7787970Position-measuring device and method for position measuring
A position-measuring device having integrated function testing includes a position-recording unit, a processing unit, and a control-word generator. In a positional-data request, a positional-data word is first generated in the position-recording unit and output to t...
08/31/2010
7770304Position-measuring device and method for determining absolute position
A position-measuring device includes a code and a scanning unit. The code includes a sequence of code elements arranged one after the other in a measuring direction, at least two successive code elements in each case forming one code word having position information...
08/10/2010
7760471Servo track writer arm positioning device
A positioning device includes a housing and a shaft that is able to be swiveled about a centrical position relative to the housing, at whose one end an element that is to be positioned is attachable. Furthermore, the positioning device has a swivel drive and a posit...
07/20/2010
7752761Angle measuring arrangement
An angle measuring arrangement for determining a relative angular position of two components, which are rotatably arranged around an axis of rotation. The angle measuring arrangement including a cap, a connecting cable, including a fixation area having a longitudina...
07/13/2010
7748251Circuit configuration and method for ascertaining tilt errors in connection with a position-measuring device
In a circuit configuration for ascertaining tilt errors in connection with a position-measuring device, the position-measuring device includes at least one incremental track on a measuring graduation that is able to be read by a scanner, which is movable relative to...
07/06/2010
7719075Scanning head for optical position-measuring systems
A scanning head for an optical position-measuring system includes a receiver grating, formed of photosensitive areas, for the scanning of locally intensity-modulated light of differing wavelengths. The receiver grating is formed from a semiconductor layer stack of a...
05/18/2010
7716847Probe system and method for operating a probe system
A probe system includes a probe head and a transceiver element. Due to contact of a stylus, a sensor signal is able to be generated by a sensor element. The probe head and the transceiver element are configured such that a wireless data transfer is able to be produc...
05/18/2010
7714273Position-measuring device
A position-measuring device for generating a reference-pulse signal at at least one reference position includes a scanning unit and also a reflection-measuring graduation displaceable relative thereto in at least one measuring direction. The scanning unit for genera...
05/11/2010
7710578Position measuring arrangement
A position measuring arrangement for detecting a relative position is disclosed. The position measuring arrangement includes a reflection scale graduation and a scanning unit having a plurality of optical elements. The plurality of optical elements includes a combin...
05/04/2010
7707739Method for attaching a scale to a carrier, a scale, and carrier having a scale
A scale is attached to a carrier by optically contacting. The optically contacting bonds are formed by raised surface regions of the scale set apart from each other. Additional measures, such as the provision of adhesive surfaces, provide a rigid and vibration-resis...
05/04/2010
7707730Body having an angle scale and its use
An annular body has an angle scale for measuring the rotational position of a machine part about an axis, the body having recesses and projections on its inner circumference, and at least one of the recesses being suited for a form-locking rotatably fixed attachment...
05/04/2010
7705289Scanning unit for an optical position-measuring device
A scanning unit for an optical position-measuring device includes a semiconductor light source and at least one downstream reflector element that has a defined optical effect on the beams of rays emitted by the semiconductor light source. The optically active surfac...
04/27/2010
7701593Optical position measuring arrangement
An optical position measuring arrangement including a source of illumination that generates one or several bundles of illuminating beams, a measuring graduation that is illuminated by the source of illumination so as to generate a periodic fringe pattern of a define...
04/20/2010
7694599Gearing as well as a rotary encoder equipped with such gearing
A gear mechanism includes a rotating input element, a rotating output element, and at least one first force transmission device arranged along a spiral line on a face of the input element. A second force transmission device is arranged along an encircling line on a ...
04/13/2010
7694596Gear system and rotary transducer equipped with this gear system
In a gear system and a rotary transducer provided with the gear system, the gear system includes a first part, a convex toothed wheel, a supporting body, relative to which the first part and the convex toothed wheel are rotationally mounted, and engaging elements wh...
04/13/2010
7690567Scanning unit for scanning a measuring standard
A scanning unit is for scanning a measuring standard having a coded track formed by a graduated scale, such as an incremental track, and a reference mark system, including a detector system for scanning the coded track and an additional detector system for scanning ...
04/06/2010
7684059Device for determining the position of an object movable along at least one displacement direction
A device for determining the position of an object that is movable along at least one displacement direction, the or each displacement direction having assigned to it one length measuring device for measuring the position of the object along the respective spatial d...
03/23/2010
7676935Angle-measurement system and method for production of an angle-measurement system
In an angle-measurement system and a method for producing an angle-measurement system, the angle-measurement system includes a bearing assembly and a scanning head, the bearing assembly including a graduated ring, an outer ring and rolling bodies. Rolling surfaces a...
03/16/2010
7667188Position measuring device including a scale having an integrated reference marking
A scale and a position-measuring device include the shifting of reference markings in graduation tracks, offset transversely with respect to the measuring direction, by fractions of the interval of the reference markings within a graduation track. It is thus possibl...
02/23/2010
7658014Length measuring arrangement
A length measuring arrangement for measuring the relative position of two objects, the length measuring arrangement including a housing made of a non-magnetic material and longitudinally extending in a measuring direction. The length measuring arrangement including ...
02/09/2010
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