Patents by Inventor Sebastian Tondorf
Sebastian Tondorf 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).
-
Patent number: 9627898Abstract: In a device and a method for transmitting energy and data between a control unit and a position-measuring device via a line pair, the energy transmission takes place in a charge mode and the data transmission takes place in a communication mode, and an energy storage device is provided in the position-measuring device, which is able to be charged in the charge mode via the line pair, and which is able to supply energy to the position-measuring device in the communication mode, and a charge unit and a switching device are provided in the control unit. The switching unit is adapted to the charge unit to the line pair in two-pole manner.Type: GrantFiled: April 10, 2013Date of Patent: April 18, 2017Assignee: DR. JOHANNES HEIDENHAIN GMBHInventors: Bernhard Beaury, Hermann Hofbauer, Markus Mooshammer, Erich Strasser, Ernst Thielicke, Sebastian Tondorf
-
Publication number: 20130265000Abstract: In a device and a method for transmitting energy and data between a control unit and a position-measuring device via a line pair, the energy transmission takes place in a charge mode and the data transmission takes place in a communication mode, and an energy storage device is provided in the position-measuring device, which is able to be charged in the charge mode via the line pair, and which is able to supply energy to the position-measuring device in the communication mode, and a charge unit and a switching device are provided in the control unit. The switching unit is adapted to the charge unit to the line pair in two-pole manner.Type: ApplicationFiled: April 10, 2013Publication date: October 10, 2013Applicant: Dr. Johannes Heidenhain GmbHInventors: Bernhard Beaury, Hermann Hofbauer, Markus Mooshammer, Erich Strasser, Ernst Thielicke, Sebastian Tondorf
-
Patent number: 8001700Abstract: A scanning unit of a position measuring arrangement for scanning a measuring graduation of a scale. The scanning unit includes a base body including an interior space; wherein the base body can be installed, fixed in place, on an object to be measured, wherein the base body comes into contact with a first contact face at a first location of the object to be measured. The scanning unit includes a heat-generating electrical component in the interior and a contact element with a second contact face which, in the course of installing the base body, enters into contact at a second location of the object to be measured. The scanning unit further including a heat-conducting element, which is designed for transferring heat generated by an electrical component from the interior space to the contact element.Type: GrantFiled: November 24, 2008Date of Patent: August 23, 2011Inventors: Sebastian Tondorf, Markus Kühler
-
Patent number: 7690567Abstract: 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 the reference mark system. The detector system, when scanning the associated coded track or reference mark system, receives scanning signals on a signal-sensitive surface, and the additional detector system includes at least two sensors, of which only one is used for scanning the reference mark system during operation of the scanning unit. Each of the two sensors is connected to one of the two inputs of a differential amplifier, and the sensor not used for scanning is deactivated in that its signal-sensitive surface is covered.Type: GrantFiled: February 27, 2004Date of Patent: April 6, 2010Assignee: Dr. Johannes Heidenhain GmbHInventors: Herbert Mauerberger, Sebastian Tondorf
-
Publication number: 20090141276Abstract: A scanning unit of a position measuring arrangement for scanning a measuring graduation of a scale. The scanning unit includes a base body including an interior space; wherein the base body can be installed, fixed in place, on an object to be measured, wherein the base body comes into contact with a first contact face at a first location of the object to be measured. The scanning unit includes a heat-generating electrical component in the interior and a contact element with a second contact face which, in the course of installing the base body, enters into contact at a second location of the object to be measured. The scanning unit further including a heat-conducting element, which is designed for transferring heat generated by an electrical component from the interior space to the contact element.Type: ApplicationFiled: November 24, 2008Publication date: June 4, 2009Inventors: Sebastian Tondorf, Markus Kuhler
-
Patent number: 7274464Abstract: A position measuring device for detecting the spatial position of a movable element in relation to a base body, the device including a linear measuring device that measures a distance between a movable element and a base body and an angle-measuring apparatus that measures an angle between the movable element and the base body. A light source that directs light along a beam path, a detector within the beam path and a grating within the beam path between the light source and the detector. For measuring the angle, the beam path extends between the movable element and the base body so that an intensity strip pattern is created by illuminating the grating by the light source, whose position relative to the detector is a measure of the angle.Type: GrantFiled: October 16, 2002Date of Patent: September 25, 2007Assignee: Dr. Johannes Heidenhain GnbHInventors: Jan Braasch, Wolfgang Holzapfel, Volker Seyfried, Sebastian Tondorf
-
Patent number: 7271920Abstract: A position-measuring device includes: a measuring graduation provided on a material measure going around in ring-like fashion; a scanning unit for optically scanning the measuring graduation using electromagnetic radiation; a scanning plate with a periodic scanning graduation which is arranged in the beam path of the electromagnetic radiation used for scanning the measuring graduation, so that the radiation interacts both with the scanning graduation and with the measuring graduation; and a detector of the scanning unit, the detector surface of which is used for detecting the electromagnetic radiation after interaction with the scanning graduation and the measuring graduation and which is arranged with a period (PD) for detecting electromagnetic radiation in the form of a stripe pattern. The period PM of the measuring graduation and the period PA of the scanning graduation may be coordinated so that 1/(1/PA?1/PM)<PD.Type: GrantFiled: September 21, 2004Date of Patent: September 18, 2007Assignee: Dr. Johannes Heidenhain GmbHInventors: Sebastian Tondorf, Walter Huber
-
Patent number: 7185444Abstract: A modular scanning unit for a position measuring system and including a support having a recess with a guide surface and a holder adjustably supported upon the support, wherein the holder has a light source and a beam-shaping device aligned with the light source. A scanning plate aligned with the light source and the beam-shaping device. The holder is guided upon the guide surface, displaceable in a first direction and rotatable in all directions, and the holder rests against the guide surface at at least one point, and that, following adjustment, the holder is fixed in place at the at least one point.Type: GrantFiled: June 22, 2004Date of Patent: March 6, 2007Assignee: Dr. Johannes Heidenhain GmbHInventors: Bernhard Falkinger, Horst Gschossmann, Sebastian Tondorf
-
Patent number: 7134177Abstract: A device for applying a scale element to a first body, in relation to which a second body can be moved in a measuring direction, the device includes an alignment element displaceable on a scale element in a measuring direction, and applied transversely thereto in a defined position, and includes a reference surface, which is adapted for interaction with a second reference surface on a second body and otherwise is loose in relation to the second body.Type: GrantFiled: February 5, 2003Date of Patent: November 14, 2006Assignee: Dr. Johannes Heidenhain GmbHInventors: Sebastian Tondorf, Peter Pechak
-
Patent number: 7057161Abstract: A position measuring device having a scanning device and a scale, wherein the scanning device is movable in relation to the scale in a measuring direction. The scale including a measuring graduation, wherein periodic measuring signals are generated when the scanning device scans the measuring graduation and a reference marking, wherein a reference marking signal is generated when the scanning device scans the reference marking with a scanning beam bundle. The scale further includes a first optically scannable area marking next to the reference marking and a second optically scannable area marking next to the reference marking and which has a different optical deflection property than the first optically scannable area marking, wherein photoelectric scanning of the first and second optically scannable area markings with the scanning beam bundle from the scanning device generates an area signal that differentiates characteristics of the first and second optically scannable area markings.Type: GrantFiled: July 5, 2002Date of Patent: June 6, 2006Assignee: Dr. Johannes Heidenhain GmbHInventors: Alexander Gruber, Michael Hermann, Wolfgang Holzapfel, Markus Kühler, Herbert Pronold, Sebastian Tondorf
-
Patent number: 6996494Abstract: A position measuring device having a scanning element assigned to a periodic measuring graduation, the scanning element moves relative to the measuring graduation so as to scan the measuring graduation and generates a first analog signal and a second analog signal that is phase shifted relative to the first analog signal. A module that forms a measured position value, wherein the first and second analog signals are present at the module, and a code word defines a position that is present at an output of the module. An output module that digitally outputs the code word over a data channel and a conversion device that converts the first analog signal and the second analog signal into multi-digit amplitude-proportional code words, wherein the code words are also available at the output module for outputting on the data channel and is digitally transmitted by the output module over the data channel.Type: GrantFiled: October 10, 2001Date of Patent: February 7, 2006Assignee: Dr. Johannes Heidenhain GmbHInventors: Jan Braasch, Hermann Hofbauer, Rudolf Mittmann, Erich Strasser, Sebastian Tondorf
-
Patent number: 6995836Abstract: An angle measuring system for the contactless determination of an angle between a first object and a second object which can be moved with respect to each other, the angle measuring system including a first component having a light source and connected to a first object and a second component having a photodetector and connected to a second object. A grating is connected either to the first component or the second component, the grating having a combined amplitude-phase grating.Type: GrantFiled: October 25, 2000Date of Patent: February 7, 2006Assignee: Dr. Johannes Heidenhain GmbHInventors: Sebastian Tondorf, Jürgen Thiel, Jan Braasch, Volker Seyfried, Wolfgang Holzapfel
-
Patent number: 6871417Abstract: A length measuring system that includes a length measuring device and at least one mounting element, which exerts an attractive force between a support and the length measuring device. One or more of the at least one mounting element are of such a size that a frictional force, which is a function of a total attractive force, assures on one hand an adhesion of the length measuring device to the support and, on another hand, also assures displaceablity of the length measuring device along the support during mounting.Type: GrantFiled: September 19, 2001Date of Patent: March 29, 2005Assignee: Dr. Johannes Heidenhain GmbHInventor: Sebastian Tondorf
-
Publication number: 20050061961Abstract: A position-measuring device includes: a measuring graduation provided on a material measure going around in ring-like fashion; a scanning unit for optically scanning the measuring graduation using electromagnetic radiation; a scanning plate with a periodic scanning graduation which is arranged in the beam path of the electromagnetic radiation used for scanning the measuring graduation, so that the radiation interacts both with the scanning graduation and with the measuring graduation; and a detector of the scanning unit, the detector surface of which is used for detecting the electromagnetic radiation after interaction with the scanning graduation and the measuring graduation and which is arranged with a period (PD) for detecting electromagnetic radiation in the form of a stripe pattern. The period PM of the measuring graduation and the period PA of the scanning graduation may be coordinated so that 1/(1/PA?1/PM)<PD.Type: ApplicationFiled: September 21, 2004Publication date: March 24, 2005Inventors: Sebastian Tondorf, Walter Huber
-
Publication number: 20050018205Abstract: A position measuring device for detecting the spatial position of a movable element in relation to a base body, the device including a linear measuring device that measures a distance between a movable element and a base body and an angle-measuring apparatus that measures an angle between the movable element and the base body. A light source that directs light along a beam path, a detector within the beam path and a grating within the beam path between the light source and the detector. For measuring the angle, the beam path extends between the movable element and the base body so that an intensity strip pattern is created by illuminating the grating by the light source, whose position relative to the detector is a measure of the angle.Type: ApplicationFiled: October 16, 2002Publication date: January 27, 2005Inventors: Jan Braasch, Wolfgang Holzapfel, Volker Seyfried, Sebastian Tondorf
-
Publication number: 20040261283Abstract: A modular scanning unit for a position measuring system and including a support having a recess with a guide surface and a holder adjustably supported upon the support, wherein the holder has a light source and a beam-shaping device aligned with the light source. A scanning plate aligned with the light source and the beam-shaping device. The holder is guided upon the guide surface, displaceable in a first direction and rotatable in all directions, and the holder rests against the guide surface at at least one point, and that, following adjustment, the holder is fixed in place at the at least one point.Type: ApplicationFiled: June 22, 2004Publication date: December 30, 2004Applicant: Dr. Johannes Heidenhain GmbHInventors: Bernhard Falkinger, Horst Gschossmann, Sebastian Tondorf
-
Patent number: 6810601Abstract: A length or angle measuring apparatus includes a holding device that may be turned by a differential screw and flector joint arranged to provide an adjustment of the angle between a scale and a scanning plate.Type: GrantFiled: February 24, 2003Date of Patent: November 2, 2004Assignee: Dr. Johannes Heidenhain GmbHInventor: Sebastian Tondorf
-
Publication number: 20040168333Abstract: 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 the reference mark system. The detector system, when scanning the associated coded track or reference mark system, receives scanning signals on a signal-sensitive surface, and the additional detector system includes at least two sensors, of which only one is used for scanning the reference mark system during operation of the scanning unit. Each of the two sensors is connected to one of the two inputs of a differential amplifier, and the sensor not used for scanning is deactivated in that its signal-sensitive surface is covered.Type: ApplicationFiled: February 27, 2004Publication date: September 2, 2004Inventors: Herbert Mauerberger, Sebastian Tondorf
-
Patent number: 6769195Abstract: A linear encoder for use with a guide assembly includes a scale (21), a head (22) for scanning the scale (21), and mounting elements (30) for releasably attaching the scale (21) to the guide rail (11) of the guide assembly, with the mounting elements (30) being arrangeable outside of the mounting surface (14) of the guide rail (11) and having stop surfaces (31, 32) extending perpendicular to the longitudinal direction (X) of the guide rail (11) for a parallel alignment of the scale (21) along the guide rail (11) and encompassing and engaging reference surface (15, 16) of the guide rail (11).Type: GrantFiled: March 26, 2003Date of Patent: August 3, 2004Assignee: Dr. Johannes Heidenhain GmbHInventors: Helmut Huber, Siegbert Holstein, Horst Gschossmann, Oliver Schenk, Sebastian Tondorf
-
Patent number: 6761079Abstract: A securing arrangement for transporting and mounting a measuring system used for the determination of the position of two components, which can be moved relative to each other. The securing arrangement includes a base body, which is linearly displaced along a displacement direction via a guide track of a support body of a measuring graduation of the measuring system and is fixed in place on the support body by clamping forces in order to maintain a mounting base that fastens a scanning device to one of the two components in a desired position in relation to the support body. A service element is provided on the base body and having an operating section for introducing and/or canceling the clamping forces, wherein the operating section of the service element laterally protrudes past a surface of the base body which faces away from the support body and is laterally bordered by a lateral edge, when the base body is fastened on the support body.Type: GrantFiled: February 20, 2002Date of Patent: July 13, 2004Assignee: Dr. Johannes Heidenhain GmbHInventors: Sebastian Tondorf, Stefan Kühnhauser, Peter Niedermeier