Patents by Inventor Ralf Christoph
Ralf Christoph has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10935366Abstract: A method and device for geometrically determining features of a workpiece, having an image processing sensor having a first beam path, the first beam path comprising at least one front optical unit facing the workpiece to be measured, and an optical splitter being mounted on the side of the front optical unit facing away from the workpiece. The optical splitter connects a second beam path to the image processing beam path, a common beam path being formed, and the second beam path being associated with a second optical sensor, the image processing sensor and the second sensor being designed to directly measure the surface of the workpiece. The front optical unit is formed as a sphere and/or has a longitudinal chromatic aberration.Type: GrantFiled: December 11, 2015Date of Patent: March 2, 2021Assignee: WERTH MESSTECHNIK GMBHInventors: Ralf Christoph, Ingomar Schmidt, Volker Wegner, Matthias Andräs, Ulrich Neuschaefer-Rube, Andreas Ettemeyer, Mehmet Demirel, Sabine Linz-Dittrich, Benjamin Hopp
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Patent number: 10900777Abstract: A method for determining the geometry of a structure on an object at least by using a computer tomography sensor system comprising at least a radiation source, a mechanical axis of rotation, and a detector, preferably a planar detector, wherein surface measurement points are generated by the computer tomography sensor system, for example in the region of material transitions. In order to select the surface measurement points to be used for the determination of a geometry feature by using any target geometry, in particular without the availability of a CAD model being necessary, according to the invention, in order to determine the geometry features, surface measurement points are used which are associated with the geometry features to be determined on the basis of specifiable rules and the geometry features are determined from the associated surface measurement points.Type: GrantFiled: January 24, 2014Date of Patent: January 26, 2021Assignee: WERTH MESSTECHNIK GMBHInventors: Ralf Christoph, Ingomar Schmidt
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Patent number: 10612907Abstract: The invention relates to a device and a method for tactile/optical measuring of geometric features and structures on a workpiece. In order to be able to precisely align the probe extension for performing precise measurements without problems, a probe is proposed comprising a probe extension (13) having a flexurally elastic design at least in segments and having a mounting segment for mounting in a receptacle (14) comprising a mounting segment (60) implemented as a rotational lock.Type: GrantFiled: June 13, 2019Date of Patent: April 7, 2020Assignee: WERTH MESSETECHNIK GMBHInventors: Ralf Christoph, Ingomar Schmidt, Benjamin Hopp, Sebastian Zoeller, Markus Hechler, Stefan Gruenwald, Andreas Ettemeyer, Sabine Linz-Dittrich, Matthias Andraes
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Publication number: 20190360795Abstract: The invention relates to a device and a method for tactile/optical measuring of geometric features and structures on a workpiece. In order to be able to precisely align the probe extension for performing precise measurements without problems, a probe is proposed comprising a probe extension (13) having a flexurally elastic design at least in segments and having a mounting segment for mounting in a receptacle (14) comprising a mounting segment (60) implemented as a rotational lock.Type: ApplicationFiled: June 13, 2019Publication date: November 28, 2019Applicant: WERTH MESSTECHNIK GMBHInventors: Ralf CHRISTOPH, Ingomar SCHMIDT, Benjamin HOPP, Sebastian ZOELLER, Markus HECHLER, Stefan GRUENWALD, Andreas ETTEMEYER, Sabine LINZ-DITTRICH, Matthias ANDRAES
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Patent number: 10393505Abstract: The invention relates to a device and a method for tactile/optical measuring of geometric features and structures on a workpiece. In order to be able to precisely align the probe extension for performing precise measurements without problems, a probe is proposed comprising a probe extension (13) having a flexurally elastic design at least in segments and having a mounting segment for mounting in a receptacle (14) comprising a mounting segment (60) implemented as a rotational lock.Type: GrantFiled: December 5, 2014Date of Patent: August 27, 2019Assignee: WERTH MESSTECHNIK GMBHInventors: Ralf Christoph, Ingomar Schmidt, Benjamin Hopp, Sebastian Zoeller, Markus Hechler, Stefan Gruenwald, Andreas Ettemeyer, Sabine Linz-Dittrich, Matthias Andraes
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Publication number: 20180106595Abstract: A method and device for geometrically determining features of a workpiece, having an image processing sensor having a first beam path, the first beam path comprising at least one front optical unit facing the workpiece to be measured, and an optical splitter being mounted on the side of the front optical unit facing away from the workpiece. The optical splitter connects a second beam path to the image processing beam path, a common beam path being formed, and the second beam path being associated with a second optical sensor, the image processing sensor and the second sensor being designed to directly measure the surface of the workpiece. The front optical unit is formed as a sphere and/or has a longitudinal chromatic aberration.Type: ApplicationFiled: December 11, 2015Publication date: April 19, 2018Applicant: WERTH MESSTECHNIK GMBHInventors: Ralf CHRISTOPH, Ingomar SCHMIDT, Volker WEGNER, Matthias ANDRÄS, Ulrich NEUSCHAEFER-RUBE, Andreas ETTEMEYER, Mehmet DEMIREL, Sabine LINZ-DITTRICH, Benjamin HOPP
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Patent number: 9625257Abstract: The invention relates to a coordinate measuring apparatus for measuring an object, having an x-ray sensory mechanism as a first sensory mechanism that is provided with an x-ray source and at least one x-ray sensor which detects the x-rays, and a second sensory mechanism such as a tactile and/or an optical sensory mechanism that can be placed in the x, y, and/or z direction of the coordinate measuring apparatus in relation to the object. In order to be able to easily measure also large-size test objects, the x-ray sensory mechanism can be positioned in the coordinate measuring apparatus according to the second sensory mechanism.Type: GrantFiled: July 3, 2014Date of Patent: April 18, 2017Assignee: WERTH MESSTECHNIK GMBHInventors: Ralf Christoph, Wolfgang Rauh
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Patent number: 9599456Abstract: The invention relates to a method and arrangement for determining structures and/or geometry of a workpiece in a coordinate measuring machine by means of a tactile-optical measuring method, wherein the position of a shaped probe element is determined in at least one direction by means of a first sensor using an optically lateral measuring method, and the position of the shaped probe element is determined in at least one second direction using at least one distance sensor. In order to allow the error-free detection of the shaped probe element using the sensors, the invention proposes that at least one flexible connector element is used in a mounting for fastening the shaped probe element, permeated by the beam path of the first sensor in the beam direction, wherein the connecting element is transparent and/or is disposed severely out of focus with respect to the first sensor.Type: GrantFiled: November 26, 2010Date of Patent: March 21, 2017Assignee: WERTH MESSTECHNIK GMBHInventors: Ralf Christoph, Matthias Andräes, Ingomar Schmidt, Markus Hechler, Benjamin Hopp
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Publication number: 20160370172Abstract: The invention relates to a device and a method for tactile/optical measuring of geometric features and structures on a workpiece. In order to be able to precisely align the probe extension for performing precise measurements without problems, a probe is proposed comprising a probe extension (13) having a flexurally elastic design at least in segments and having a mounting segment for mounting in a receptacle (14) comprising a mounting segment (60) implemented as a rotational lock.Type: ApplicationFiled: December 5, 2014Publication date: December 22, 2016Applicant: WERTH MESSTECHNIK GMBHInventors: Ralf Christoph, Ingomar Schmidt, Benjamin Hopp, Sebastian Zoeller, Markus Hechler, Stefan Gruenwald, Andreas Ettemeyer, Sabine Linz-Dittrich, Matthias Andraes
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Patent number: 9503658Abstract: A method for generating and evaluating an image of a section of an object using an optical sensor. To generate a bright image, individual images are recorded of a section, of which individual images at least some individual images overlap at least in part in each case, and that to generate the image, the individual images or signals are aligned with respect to one another and superposed to form an overall image as the image of the at least one section, so that the evaluation of the overall image is substantially restricted to the overlapping regions of the individual images and/or the evaluation of the overall image or of a part thereof is brought about on the basis of the overlapping regions of the individual images having the latter.Type: GrantFiled: May 16, 2012Date of Patent: November 22, 2016Assignee: WERTH MESSTECHNIK GMBHInventors: Ralf Christoph, Ingomar Schmidt, Peter Winck
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Publication number: 20150355113Abstract: The invention relates to a method for determining the geometry of a structure on an object at least by using a computer tomography sensor system comprising at least a radiation source, a mechanical axis of rotation, and a detector, preferably a planar detector, wherein surface measurement points are generated by the computer tomography sensor system, for example in the region of material transitions. In order to select the surface measurement points to be used for the determination of a geometry feature by using any target geometry, in particular without the availability of a CAD model being necessary, according to the invention, in order to determine the geometry features, surface measurement points are used which are associated with the geometry features to be determined on the basis of specifiable rules and the geometry features are determined from the associated surface measurement points.Type: ApplicationFiled: January 24, 2014Publication date: December 10, 2015Inventors: Ralf CHRISTOPH, Ingomar SCHMIDT
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Publication number: 20150260859Abstract: The invention relates to a device and a method for correcting the results of a computed tomography measurement of the geometry of a workpiece, the computed tomography sensor system, which consists at least of a radiation source, a two-dimensional detector and a mechanical axis of rotation for rotating the workpiece or component, being integrated into a coordinate measuring machine. To provide a simple and inexpensive method for carrying out a distortion correction, imaging errors present on the detector are corrected by measuring a calibration object in at least two relative positions between the calibration object and the detector.Type: ApplicationFiled: September 9, 2013Publication date: September 17, 2015Inventors: Ralf Christoph, Michael Hammer, Ingomar Schmidt
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Patent number: 9025855Abstract: A method for determining structures or geometry of an object, or for measuring an object using a CT measuring system, and for correcting projection data for a CT reconstruction with the application of a CT detector, wherein the CT measuring system includes at least one radiation source, at least one radiation detector, and at least one axis of rotation.Type: GrantFiled: February 19, 2010Date of Patent: May 5, 2015Assignee: Werth Messtechnik GmbHInventors: Ralf Christoph, Ingomar Schmidt, Michael Hammer, Thomas Wiedenhöfer
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Publication number: 20150030121Abstract: The invention relates to a coordinate measuring apparatus for measuring an object, having an x-ray sensory mechanism as a first sensory mechanism that is provided with an x-ray source and at least one x-ray sensor which detects the x-rays, and a second sensory mechanism such as a tactile and/or an optical sensory mechanism that can be placed in the x, y, and/or z direction of the coordinate measuring apparatus in relation to the object. In order to be able to easily measure also large-size test objects, the x-ray sensory mechanism can be positioned in the coordinate measuring apparatus according to the second sensory mechanism.Type: ApplicationFiled: July 3, 2014Publication date: January 29, 2015Inventors: Ralf CHRISTOPH, Wolfgang RAUH
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Patent number: 8804905Abstract: The invention relates to a coordinate measuring apparatus (110) for measuring an object (3), comprising an x-ray sensory mechanism as a first sensory mechanism that is provided with an x-ray source (10) and at least one x-ray sensor (7) which detects the x-rays, and a second sensory mechanism such as a tactile and/or an optical sensory mechanism (8, 11; 9) that can be placed in the x, y, and/or z direction of the coordinate measuring apparatus in relation to the object. In order to be able to easily measure also large-size test objects, the x-ray sensory mechanism (7, 10) can be positioned in the coordinate measuring apparatus (10) according to the second sensory mechanism (8, 11; 9).Type: GrantFiled: May 24, 2005Date of Patent: August 12, 2014Assignee: Werth Messtechnik GmbHInventors: Ralf Christoph, Wolfgang Rauh
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Publication number: 20140192234Abstract: A method for generating and evaluating an image of a section of an object using an optical sensor. To generate a bright image, individual images are recorded of a section, of which individual images at least some individual images overlap at least in part in each case, and that to generate the image, the individual images or signals are aligned with respect to one another and superposed to form an overall image as the image of the at least one section, so that the evaluation of the overall image is substantially restricted to the overlapping regions of the individual images and/or the evaluation of the overall image or of a part thereof is brought about on the basis of the overlapping regions of the individual images having the latter.Type: ApplicationFiled: May 16, 2012Publication date: July 10, 2014Inventors: Ralf Christoph, Ingomar Schmidt, Peter Winck
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Patent number: 8711365Abstract: The invention relates to a method for the measurement of workpiece geometries with a coordinate measuring device (10) and to the device itself. According to the invention, measuring tasks may be optimally carried out without a requirement for devices of differing types, whereby one or more sensors (30), which are of optimal application for the relevant measuring task, are used.Type: GrantFiled: November 27, 2012Date of Patent: April 29, 2014Assignee: Werth Messtechnik GmbHInventors: Ralf Christoph, Wolfgang Rauh, Matthias Andras, Uwe Wachter
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Publication number: 20130167389Abstract: The invention relates to a method for the measurement of workpiece geometries with a coordinate measuring device (10) and to the device itself. According to the invention, measuring tasks may be optimally carried out without a requirement for devices of differing types, whereby one or more sensors (30), which are of optimal application for the relevant measuring task, are used.Type: ApplicationFiled: November 27, 2012Publication date: July 4, 2013Inventors: Ralf CHRISTOPH, Wolfgang RAUH, Matthias ANDRAS, Ewe WACHTER
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Patent number: 8422624Abstract: A method and an apparatus for dimensionally measuring parts by means of a coordinate measuring instrument. In order enable measurement of parts that are made of different materials with great accuracy, a computerized tomography sensor is integrated into the coordinate measuring instrument.Type: GrantFiled: April 18, 2008Date of Patent: April 16, 2013Assignee: Werth Messtechnik GmbHInventors: Ralf Christoph, Wolfgang Rauh, Michael Hammer
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Publication number: 20120327221Abstract: The invention relates to a method and arrangement for determining structures and/or geometry of a workpiece in a coordinate measuring machine by means of a tactile-optical measuring method, wherein the position of a shaped probe element is determined in at least one direction by means of a first sensor using an optically lateral measuring method, and the position of the shaped probe element is determined in at least one second direction using at least one distance sensor. In order to allow the error-free detection of the shaped probe element using the sensors, the invention proposes that at least one flexible connector element is used in a mounting for fastening the shaped probe element, permeated by the beam path of the first sensor in the beam direction, wherein the connecting element is transparent and/or is disposed severely out of focus with respect to the first sensor.Type: ApplicationFiled: November 26, 2010Publication date: December 27, 2012Applicant: WERTH MESSTECHNIK GMBHInventors: Ralf Christoph, Matthias Andräs, Ingomar Schmidt, Markus Hechler, Benjamin Hopp