| Patent Number |
Title Of Patent |
Date Issued |
| 7461464 |
Position measuring arrangement |
December 9, 2008 |
| A position measuring arrangement that includes an arrangement of scanning elements for scanning an absolute code and a selection system for selecting scanning signals from the arrangement of scanning elements by a first method of selection and a second method of selection different from |
| 7439734 |
Rotary encoder and method for its operation |
October 21, 2008 |
| A rotary encoder includes a first group of components and a second group of components. The first group of components has a pulse wire, a detector, and a circuit configuration. The second group of components has a magnet and a code element. Upon approach of the magnet to the pulse wi |
| 7235776 |
Method and device for regulating a light source of a position-measuring unit |
June 26, 2007 |
| A device for regulating a light source of a position-measuring unit includes: a measuring standard device that is movable relative to the light source; and a plurality of photodetectors, the photocurrent of at least one of the photodetectors usable as a basis for forming an actual va |
| 7219439 |
Mounting aid for a position measuring system, as well as a scale and position measuring system w |
May 22, 2007 |
| A mounting aid for the alignment of a first graduation support in relation to a second graduation support of a position measuring system, the mounting aid including a spacer, which specifies a preset scanning distance between a first measuring graduation of the first graduation suppo |
| 7196319 |
Position-measuring device |
March 27, 2007 |
| A position-measuring device for generating a measuring signal includes a track, which has an incremental graduation having a specified graduation period that extends along a measuring direction, having at least one discontinuity of the incremental graduation at a reference position for |
| 7154609 |
Interferential position measuring arrangement |
December 26, 2006 |
| An interferential position measuring arrangement including a light source, which emits a beam of rays and an optical element, which converts the beam of rays emitted by the light source into an incoming beam of rays. A scale grating which splits the incoming beam of rays into a first par |
| 6929396 |
System for temperature monitoring |
August 16, 2005 |
| A system for monitoring the temperature prevailing in the stator unit of an electric drive includes a temperature sensor that is integrated into the windings of the stator unit and that transmits a temperature-dependent sensor signal. The sensor signal may be injected via an electrical |
| 6826847 |
Position measuring system |
December 7, 2004 |
| A support body designed in accordance with a support body that includes a groove with lateral wall areas cut into a support body and a profiled unit. The profiled unit including a profiled area attached to both a cover flange with a laterally protruding contact area and a scale, wherein |
| 6807499 |
Control device of a position measuring system |
October 19, 2004 |
| A method for generating an indication regarding the amplitude level of at least one scanning signal of a position measuring system by determining an amplitude level of at least one scanning signal of a position measuring system, generating an amplitude signal based on the determined ampl |
| 6801874 |
Position measuring device and method for the start-up of a position measuring device |
October 5, 2004 |
| A position measuring device for determining the position of two elements, which are movable with respect to each other, the device including a voltage source and a scanning unit that includes one or more individual electrical components and a voltage monitoring unit that selectively |
| 6775921 |
Method for fabricating an annular scale |
August 17, 2004 |
| In a method for manufacturing an annular scale from a measuring strip, the ends of a measuring strip are welded together, and the shortening of the scale-division marks in the joint region caused by the welding operation is compensated by a subsequent rolling operation. |
| 6772020 |
Arrangement for generating command variables for control loops of a numerically controlled machi |
August 3, 2004 |
| An arrangement for generating command variables for control loops of a numerically controlled machine that includes an interpolator unit for providing position set points with a defined interpolator scanning rate and a precision interpolator unit. The precision interpolator unit incl |
| 6747458 |
Method for monitoring the ground potential of a rectifier drive |
June 8, 2004 |
| A method for ground potential monitoring of a rectifier drive, having a capacitor which is connected with a voltage source via a switching device. The method including applying a test voltage between a connector of a capacitor of a rectifier drive and a mass or ground potential prior to |
| 6736009 |
Measurement system comprising an acceleration sensor and a position sensor |
May 18, 2004 |
| A measurement system for determining acceleration and a position of an object. The measurement system includes a first sensor system for determining an acceleration of an object, the first sensor having a body with an electrically conducting measuring structure, a device for generati |
| 6671092 |
Reflective measuring scale graduation and method for its manufacture |
December 30, 2003 |
| A reflective measuring scale graduation, as well as a method for manufacturing the same are described. The reflective measuring scale graduation includes first and second subdivisions having different reflection properties, which extend in at least one first direction on a reflecting |
| 6628004 |
Device and method for generating a partially synthesized signal with very good dynamic quality f |
September 30, 2003 |
| A system and method for controlling the acceleration of an armature of an electric drive by generating a high quality acceleration error correction signal z, the system comprising an accelerometer for obtaining a measured armature acceleration value b.sub.m, which is equal to the product |
| 6603114 |
Scanning head comprising a semiconductor substrate with a blind hole containing a light source |
August 5, 2003 |
| A scanning head is described, having on a side facing a scale at least one patterned photodetector, which is realized in a semiconductor substrate. The semiconductor substrate has an anisotropic blind hole that is symmetrical to the several photodetectors, and a light source arranged on |
| 6535290 |
Optical position measuring device with a beam splitter |
March 18, 2003 |
| A position measuring device for determining the position of two parts that are movable relatively to one another in the measuring direction, which, in addition, includes the feature of enabling an absolute reference to be established during the measurement. To this end, the position meas |
| 6507760 |
Numerical control unit with a spatially separated input device |
January 14, 2003 |
| A method for the dependable operation of a spatially separated input device of a numerical control that includes inputting at an input device so as to generate output signals, supplying the output signals to at least two processors and checking the output signals or signals based on the |
| 6476380 |
Compact optical measuring module utilizing three dimensional construction |
November 5, 2002 |
| A three-dimensional measuring module includes an optical chip arranged spatially above a scanning plate and a signal processing assembly arranged above the optical chip. A housing completely encloses the optical chip and the signal processing assembly as well as a scanning plate. The ele |
| 6462535 |
Eddy current sensor with a modification coil for reducing extensive heating and a method for ope |
October 8, 2002 |
| An eddy current sensor including an arrangement for generating a first magenetic flux, which is essentially directed vertically with respect to a moved body, a detector coil for detecting an eddy field in the moved body and a second arrangement which generates a further adjustable magnet |
| 6452160 |
Angle measuring system and method for mounting an angle measuring system |
September 17, 2002 |
| An angle measuring system for measuring the angular position of two objects which are rotatable around an axis in relation to each other and includes a support with a graduation, wherein the support can be connected on a first object. A scanning device which can be fastened on a second o |
| 6452159 |
Position measuring system |
September 17, 2002 |
| A position measuring system that includes a scale having an incremental track, which extends in a measuring direction and has an incremental graduation with two different graduation periods. A scanning unit moves in relation to the scale in a measuring direction, the scanning unit has an |
| 6446350 |
Method and arrangement for reducing temperature-related dimensional discrepancies in measurement |
September 10, 2002 |
| A measurement system is described having parts that are not joined directly to the machine being measured, so that a change in the geometry of the machine cannot result in a shifting of the measurement systems relative to one another. The shifting of the measurement systems with respect |
| 6445965 |
Method and arrangement for selecting safety parameters to be monitored |
September 3, 2002 |
| A method and apparatus for monitoring a safety condition of a device, receive data from a plurality of operating-state detectors of the device selected on the basis of a specific configuration of the device to signal dangerous operating conditions of the device. Furthermore, to eliminate |
| 6421628 |
Signal handling device |
July 16, 2002 |
| A signal handling device enables a data transmission between a plurality of position measuring devices and a master unit. The signal handling device includes a main communications port for communicating with a master unit via a data bus and a measurement port for communicating with a pos |
| 6418396 |
Method for operating a position measuring system and position measuring system for the purpose |
July 9, 2002 |
| A method for operating a position measuring system and a suitable position measuring system in which after the onset of measurement incremental signals relating to the relative position of two parts movable relative to one another are generated by the position measuring system and transm |
| 6353397 |
Method and device for switching between different types of output signals of a position measurin |
March 5, 2002 |
| A method and a device for switching between different types of output signals, wherein it is possible to generate at least two different types of output signals by the position measuring system which are transmitted to an evaluating unit. Switching between the different types of output |
| 6293021 |
Process for arranging an angle scale on an index disk for rotational measurement systems and an |
September 25, 2001 |
| In a process for arranging an angle scale at an index disk for rotational measurement systems, wherein the index disk is provided with a central opening for mounting on a carrier shaft, a clamping device which deforms elastically in the radial direction when the index disk is mounted on |
| 6272766 |
Length measuring instrument, and machine having a length measuring instrument |
August 14, 2001 |
| A length measuring instrument having a scale which can be scanned by a scanner device is provided. The scale is rotatably supported in an end region about the measurement axis X by a pivot bearing. The scanner device is guided on the scale so that rotations of the scanner device are |
| 6198534 |
Scanning unit for an optical position measuring system |
March 6, 2001 |
| A scanning unit for an optical position measuring system is disclosed which, besides periodic incremental signals, also provides at least one reference pulse signal at a defined reference position of a scale and a scanning unit which is movable relative to it. For scanning a reference |
| 6124588 |
Process and measuring system for locating a movable object by monitoring the absolute position o |
September 26, 2000 |
| A method for position determination of a rotating drive element with the aid of a measuring system is indicated, which comprises an absolute and an incremental measuring subsystem. Here, following the start of a rotary movement, absolute position measurement values are continuously deter |
| 6105271 |
Arrangement for accommodating a scale in a positive engagement |
August 22, 2000 |
| An arrangement for accommodating a scale (2) of a length measuring device in a positive-locking engagement has a profile base (1) and lateral profile legs (4, 5) which are connected with the profile base so as to project away from it. A scale (2) is arranged between the profile legs (4; |
| 6049992 |
Method and device for directed mounting of a measurement strip |
April 18, 2000 |
| For directed mounting of a measurement strip in a length measuring system in which two bodies are arranged so as to be displaceable relative to one another, lateral mounting elements are fastened along the length of the measurement strip at a machine part against which the measurement st |
| 6043768 |
Device and method for switching between different operating modes of a transducer |
March 28, 2000 |
| A device and method for data transmission between a transducer and a processing unit which are coupled by one or several signal transmission lines, to selectively activate at least two different modes of operation of the transducer. The device includes a comparator unit which identifies |
| 6043482 |
Scanning unit with a printed circuit for an optical position-measuring apparatus |
March 28, 2000 |
| A scanning unit for an optical position-measuring apparatus with a flexible printed circuit that electrically couples several electronic components. Among the components is at least one optoelectronic detector element or a radiation source that is suitable for the generation of shift-dep |
| 6031224 |
Position measuring system |
February 29, 2000 |
| A position measuring system including a scale and a scanning unit for scanning the scale and movable relative to the scale in a measuring direction, for generating position-dependent measuring signals, the scanning unit including a pattern with first and second sections. A reference |
| 6002126 |
Method and structure for assembling a scanning unit in a positioning measuring instrument |
December 14, 1999 |
| The spacing distance D between a scale and a scanner element of a scanner unit is adjusted simply through the use of a positioning element which is part of the scanning unit. The scanner unit has a mounting element on which the scanner element is supported. The scanner element is dis |
| 5956659 |
Arrangement and method for the automatic correction of error-containing scanning signals of incr |
September 21, 1999 |
| An arrangement as well as a method for the automatic correction of error-containing scanning signals, which contain defined deviations from the ideal signal shape, of incremental position measuring devices is disclosed, wherein an ideal signal shape is presupposed by a downstream arr |
| 5874729 |
Device for filtering odd-numbered harmonic signal components |
February 23, 1999 |
| A device that is suitable for filtering odd-numbered harmonic signal components out of a periodic signal which is generated from the scanning of a periodic scale graduation using the scanning plate. The scanning plate includes a periodic sequence of individual filter elements in the |
| 5856668 |
Photoelectric position measuring encoder having scale formed of electrically non-conductive mate |
January 5, 1999 |
| A photoelectric position measuring encoder including a scale formed of an electrically non-conductive material and having a graduation, a scanner for photoelectrically scanning the graduation and displaceable relative to the scale in a measuring direction for generating a position-depend |
| 5841275 |
Magnetic measuring system having a particularly oriented auxiliary field |
November 24, 1998 |
| A position measuring device having a magnetic graduation scanned by a scanner unit which contains magnetic field sensitive elements as sensors. A high frequency alternating auxiliary field is generated to magnetically bias the magnetic field sensitive elements. |
| 5806201 |
Multi-coordinate touch probe |
September 15, 1998 |
| A multi-coordinate touch probe including a deflectable stylus, a stylus support, and a sensor arrangement for sensing the deflection of the stylus and for generating a deflection signal, with the deformation parameters of the assembly stylus/support, which include a geometrical layout of |
| 5786931 |
Phase grating and method of producing phase grating |
July 28, 1998 |
| The phase grating of the present invention includes a substrate with a reflective, continuous layer disposed thereon on which a structured spacer layer 3 of dielectric material is applied. To form a phase grating that can be used as a scale in photoelectric position measuring instruments |
| 5771594 |
Angular encoder |
June 30, 1998 |
| An angular encoder for determining an angular position between a stationary element and an element rotatable relative to the stationary element and including a coupling for connecting a scanning unit with a stationary element and formed of a spring material, with the coupling having at l |
| 5696584 |
Phase grating having an unprotected relief structure with a grating structure that causes destru |
December 9, 1997 |
| An uncovered unprotected phase grating includes a substrate which has a relief structure. The relief structure includes a high-refraction material so that even if soiled with impeding ambient media an adequate difference in the index of refraction exists and the diffraction effect is pre |
| 5687103 |
Position measuring device |
November 11, 1997 |
| The invention concerns a device and a method for serial data transmission. In the position measuring device there is provided a memory, in which specific parameters of the position measuring device are kept. These parameters can be sent on the data line to a processing unit, by which the |
| 5648658 |
Apparatus and method for generating position-dependent signals using a scanning plate having a p |
July 15, 1997 |
| In this apparatus, which serves preferably to generate reference pulses, graduations are provided on the scanner plate (A), whose graduation period varies steadily as a function of location (chirped grating). The various graduation markings (GS) are embodied in turn as periodic phase gra |
| 5619132 |
Position measuring device employing primary and auxiliary magnetic fields |
April 8, 1997 |
| A magnetic measuring system having a scale and a scanning unit, the scanning unit having a plurality of magneto-resistive elements which are disposed at an angle .beta. with respect to the measuring direction. The scanning unit generates an auxiliary magnetic field which acts perpend |
| 5608641 |
Method and apparatus for simplifying the task of retrieving and accessing a segment of a numeric |
March 4, 1997 |
| Long NC programs are made more manageable by assigning descriptive NC sentences to groups of program code lines of the NC program. The groups can be combined into groups of higher hierarchial order and assigned a descriptive NC sentence. The NC sentences are displayed in their respec |
