Patents by Inventor Dirk Ettelt
Dirk Ettelt 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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Publication number: 20230366702Abstract: An absolute position encoder for a measuring instrument, comprising a digital scale and a reader movable relative to the digital scale. The digital scale is arranged along a travel direction of the reader. The digital scale comprises at least one absolute position track having a sequence of discrete regions sharply separated from each other by separating regions. The reader comprises a first and a second series of detectors configured to sense the discrete regions and separating regions to detect at least one of a first and a second absolute position code. The sequence of discrete regions and the first and second series of detectors are disposed such that none of the detectors of at least one of said first and second series of detectors is aligned with a transition between a discrete region and a separating region at each possible position of the reader relative to the digital scale.Type: ApplicationFiled: September 30, 2021Publication date: November 16, 2023Applicant: TESA SÀRLInventors: Werner PIRKL, Vasco FOLETTI, Davide MANETTI, Julien CHARDONNENS, Sokha CHONGKAM, Dirk ETTELT
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Publication number: 20220196387Abstract: Disclosed herein is a contactless sensing unit for a measuring apparatus or machine tool 1, notably for a coordinate measuring machine (CMM). The contactless sensing unit comprises an optical probe device, a coupling element for mechanical connection to a complementary coupling element on the measuring apparatus or machine tool and a housing for housing the optical probe device. The housing is mechanically connected to the coupling element. The optical probe device comprises an optical objective at a distal end of a lower portion of the probe device for sensing a surface of a workpiece. The contactless sensing unit further comprises a collar for adjusting a relative axial, radial and/or angular position of the optical probe device with respect to a fastening portion of the housing. The collar circumferentially clamps the optical probe device essentially around an upper portion of the optical probe device.Type: ApplicationFiled: December 17, 2021Publication date: June 23, 2022Applicant: TESA SÀRLInventors: Dirk ETTELT, Julien SINGER, Julien CHARDONNENS, Davide MANETTI
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Patent number: 10953607Abstract: An arrangement includes a carrier and a scale disposed on the carrier in a spaced-apart relation therewith. The scale has a measuring graduation and is attached to the carrier via areally distributed and spaced-apart adhesive dots. The adhesive dots, which can be circular in shape, each include at least three spacers, which can be spheres, enclosed within an adhesive.Type: GrantFiled: October 24, 2018Date of Patent: March 23, 2021Assignee: DR. JOHANNES HEIDENHAIN GMBHInventors: Dirk Ettelt, Reiner Lang, Wolfgang Pucher, Thomas Sigl
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Publication number: 20190126564Abstract: An arrangement includes a carrier and a scale disposed on the carrier in a spaced-apart relation therewith. The scale has a measuring graduation and is attached to the carrier via areally distributed and spaced-apart adhesive dots. The adhesive dots, which can be circular in shape, each include at least three spacers, which can be spheres, enclosed within an adhesive.Type: ApplicationFiled: October 24, 2018Publication date: May 2, 2019Inventors: Dirk Ettelt, Reiner Lang, Wolfgang Pucher, Thomas Sigl
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Patent number: 9581188Abstract: A mechanical connection between two parts of a microelectromechanical and/or nanoelectromechanical structure forming a pivot with an axis of rotation pivot includes two first beams with an axis parallel to the pivot axis, the first beams configured to work in torsion, and two second beams with an axis orthogonal to the axis of the first beams, the second beams configured to work in bending, each one of the first and second beams being connected at their ends to the two parts of the structure.Type: GrantFiled: December 12, 2012Date of Patent: February 28, 2017Assignee: Commissariat a l'energie atomique et aux energies alternativesInventors: Guillaume Jourdan, Dirk Ettelt, Patrice Rey, Arnaud Walther
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Patent number: 9562789Abstract: A magnetic field sensor comprises a substrate and a moving part which is displaced when subjected to a Laplace force. There is a gauge for measuring the displacement of the moving part. There is a suspended lever that is rotationally displaced about an axis of rotation at right angles to the direction of displacement of the moving part. The lever is connected to the moving part to transmit displacement of the moving part to the lever to cause rotation of the lever about the axis of rotation. The lever is also connected to a first part of the gauge. The sensor comprises a hinge that connects the lever to the substrate. The hinge allows the rotation of the lever about its axis of rotation and is rigid to allow for a lever arm effect. The second part of the gauge is fixed with no degree of freedom to the substrate.Type: GrantFiled: June 14, 2013Date of Patent: February 7, 2017Assignee: Commissariat à l'énergie atomique et aux énergies alternativesInventors: Robert Philippe, Dirk Ettelt, Arnaud Walther
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Patent number: 9417097Abstract: A device for measuring magnetic fields with Laplace force, comprising a substrate extending in a substrate plane, a first rigid frame in a first plane moveable relative to the substrate about a first rotation axis parallel to the substrate plane with a central through-recess. There is a fixed electrical conductor wound an axis perpendicular to the plane of the first frame. There a first hinge connecting the first rigid frame to the substrate with a first electrical track. There is a second hinge connected to the first rigid frame with a second electrical track. There is a first sensor for measuring of the angular displacement of the first rigid frame. The first hinge and the first electrical track are inside the central recess of the first rigid frame and the second hinge and the second electrical track are outside the central recess of the first rigid frame.Type: GrantFiled: August 29, 2013Date of Patent: August 16, 2016Assignee: Commissariat à l'énergie atomique et aux énergies alternativesInventors: Philippe Robert, Dirk Ettelt, Arnaud Walther
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Publication number: 20150211891Abstract: A device for measuring magnetic fields with Laplace force, comprising a substrate extending in a substrate plane, a first rigid frame in a first plane movable relative to the substrate about a first rotation axis parallel to the substrate plane with a central through-recess. There is a fixed electrical conductor wound an axis perpendicular to the plane of the first frame. There a first hinge connecting the first rigid frame to the substrate with a first electrical track. There is a second hinge connected to the first rigid frame with a second electrical track. There is a first sensor for measuring of the angular displacement of the first rigid frame. The first hinge and the first electrical track are inside the central recess of the first rigid frame and the second hinge and the second electrical track are outside the central recess of the first rigid frame.Type: ApplicationFiled: August 29, 2013Publication date: July 30, 2015Inventors: Philippe Robert, Dirk Ettelt, Arnaud Walther
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Publication number: 20150123656Abstract: A magnetic field sensor comprises a substrate and a moving part which is displaced when subjected to a Laplace force. There is a gauge for measuring the displacement of the moving part. There is a suspended lever that is rotationally displaced about an axis of rotation at right angles to the direction of displacement of the moving part. The lever is connected to the moving part to transmit displacement of the moving part to the lever to cause rotation of the lever about the axis of rotation. The lever is also connected to a first part of the gauge. The sensor comprises a hinge that connects the lever to the substrate. The hinge allows the rotation of the lever about its axis of rotation and is rigid to allow for a lever arm effect. The second part of the gauge is fixed with no degree of freedom to the substrate.Type: ApplicationFiled: June 14, 2013Publication date: May 7, 2015Inventors: Robert Philippe, Dirk Ettelt, Arnaud Walther
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Publication number: 20140331770Abstract: A mechanical connection between two parts of a microelectromechanical and/or nanoelectromechanical structure forming a pivot with an axis of rotation pivot includes two first beams with an axis parallel to the pivot axis, the first beams configured to work in torsion, and two second beams with an axis orthogonal to the axis of the first beams, the second beams configured to work in bending, each one of the first and second beams being connected at their ends to the two parts of the structure.Type: ApplicationFiled: December 12, 2012Publication date: November 13, 2014Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENE ALTInventors: Guillaume Jourdan, Dirk Ettelt, Patrice Rey, Arnaud Walther
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Patent number: 8653813Abstract: A magnetic field vector sensor includes a substrate parallel to a plane, a support mobile relative to it and rotatable about a vertical rotation axis perpendicular to it, a magnetic field source generating a field having a moment in a non-perpendicular direction, the source being fixed to the support with no degree-of-freedom to exert torque on the support when a field to be measured is present, the field being non-collinear with the moment, a transducer to convert torque exerted on the support into a field amplitude of a component of the field along a measurement axis in the plane, wherein the source comprises a magnetostrictive permanent magnet for generating the field having a moment whose direction varies with stress on the magnet, and wherein the sensor further comprises a controllable device to reversibly modify the moment direction, and a stress generator to vary stress and hence moment direction.Type: GrantFiled: November 14, 2012Date of Patent: February 18, 2014Assignees: Commissariat a l'Energie Atomique et aux Energies Alternatives, Institut Polytechnique de GrenobleInventors: Dirk Ettelt, Jerome Delamare, Gor Lebedev, Bernard Viala
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Publication number: 20130127455Abstract: A magnetic field vector sensor includes a substrate parallel to a plane, a support mobile relative to it and rotatable about a vertical rotation axis perpendicular to it, a magnetic field source generating a field having a moment in a non-perpendicular direction, the source being fixed to the support with no degree-of-freedom to exert torque on the support when a field to be measured is present, the field being non-collinear with the moment, a transducer to convert torque exerted on the support into a field amplitude of a component of the field along a measurement axis in the plane, wherein the source comprises a magnetostrictive permanent magnet for generating the field having a moment whose direction varies with stress on the magnet, and wherein the sensor further comprises a controllable device to reversibly modify the moment direction, and a stress generator to vary stress and hence moment direction.Type: ApplicationFiled: November 14, 2012Publication date: May 23, 2013Applicants: Institut Polytechnique de Grenoble, Commissariat a I'energie atomique et aux energies alternativesInventors: Dirk Ettelt, Jerome Delamare, Gor Lebedev, Bernard Viala