Patents by Inventor Alexander Schricker
Alexander Schricker 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: 20240077299Abstract: The invention relates to a method for correcting a misalignment of at least one shafting of a powertrain on a test bench, where at least one piezoelectric force sensor is arranged in a path of force via which a force flow can be transmitted between a load unit of the test bench and a drive unit of the powertrain or the test bench during a transmission of power via the shafting, comprising: performing a force measurement in at least one plane and/or perpendicular to the at least one plane which is intersected by a rotational axis of the shafting and may be substantially perpendicular to the rotational axis; analyzing a measured value or a measured value progression of the force measurement for detecting a misalignment of the shafting; determining target values for a position correction of the load unit or the drive unit in order to minimize the misalignment; and outputting the target values.Type: ApplicationFiled: January 14, 2022Publication date: March 7, 2024Inventors: Alexander SCHRICKER, Jakob MODER, Andreas NEUBAUER, Erwin REISINGER, Michael MESSNER
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Patent number: 11852545Abstract: The invention relates to a measuring device for determining force and/or torque on a torque-transmitting shaft which is supported by a bearing device, in particular a machine, the output and/or input shaft of which is formed by the torque-transmitting shaft. The measuring device has at least two, preferably three or four, piezoelectric elements and a fixing device, wherein the fixing device supports the piezoelements and is designed in such a way that a force, in particular shear force, can be measured between the bearing device and a supporting device for supporting the bearing device by means of the piezoelements.Type: GrantFiled: January 24, 2019Date of Patent: December 26, 2023Assignee: AVL LIST GMBHInventors: Alexander Schricker, Patrick Falk, Franz Dreisiebner, Helmut Kokal, Mario Propst
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Publication number: 20230194368Abstract: Aspects of the present disclosure relate to a piezoelectric device having at least one piezoelectric element, which has a support plane oriented to a force introduction element, wherein in the event of a thermal loading of the piezoelectric device in the support plane, expansion differences between the piezoelectric element and the force introduction element occur. To compensate for shear loadings, at least one transition element is arranged between the piezoelectric element and the force introduction element, the E-module of which is smaller than the E-module of the piezoelectric element in the support plane.Type: ApplicationFiled: August 7, 2018Publication date: June 22, 2023Inventors: Alexander Schricker, Christian Neubauer, Andreas Mayer
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Publication number: 20230133592Abstract: The invention relates to a method for adjusting a piezoelectric torque sensor of a measuring apparatus, which can be part of a test bench, for determining a torque applied to a test piece due to a force flux, wherein the measuring apparatus comprises a piezoelectric torque sensor and a second torque sensor based on a different measuring principle which is designed to continuously detect static torques, wherein the measuring apparatus is configured such that both torque sensors measure torques in the force flux, whereby a target measurement signal of the piezoelectric torque sensor is determined on the basis of a torque measurement by the second torque sensor, and whereby the detected measurement signal of the piezoelectric torque sensor is adjusted and output on the basis of the determined target measurement signal.Type: ApplicationFiled: March 16, 2021Publication date: May 4, 2023Inventors: Helmut KOKAL, Alexander SCHRICKER, Gregor GRIESSER
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Publication number: 20220146337Abstract: Various embodiments of the present disclosure are directed to a measurement system. In one example embodiment, a measurement system is disclosed including a flat measurement element receptacle and at least one piezoelectric measurement element. The flat measurement element receptacle having substantially parallel cover surfaces, and is installed between torque- and/or force-transmitting machine parts. The at least one piezoelectric measurement element arranged in a through-opening of the measurement element receptacle and mechanically fixed, with play, in the through-opening.Type: ApplicationFiled: February 25, 2020Publication date: May 12, 2022Inventors: Alexander Schricker, Michael Hirschler, Franz Dreisiebner, Erik Gerstl
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Publication number: 20210190609Abstract: The invention relates to a measuring system for determining a force and/or a torque on a torque-transmitting shaft, wherein: the measuring system has at least three, in particular at least four, piezoelectric elements each having a preferred direction and each being arranged at different positions about a rotational axis of the shaft in a force flow transmitted via the shaft, said arrangement being such that a force of the force flow acts, in particular exclusively, on the piezoelectric elements; the preferred directions each lie parallel to or in a single plane which is intersected by the rotational axis; and the preferred directions of at least two, in particular at least three, of the piezoelectric elements are oriented neither parallel nor antiparallel to one other.Type: ApplicationFiled: January 24, 2019Publication date: June 24, 2021Inventors: Alexander SCHRICKER, Franz DREISIEBNER, Helmut KOKAL, Mario PROPST, Michael HIRSCHLER
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Publication number: 20210116316Abstract: The invention relates to a measuring device for determining force and/or torque on a torque-transmitting shaft which is supported by a bearing device, in particular a machine, the output and/or input shaft of which is formed by the torque-transmitting shaft. The measuring device has at least two, preferably three or four, piezoelectric elements and a fixing device, wherein the fixing device supports the piezoelements and is designed in such a way that a force, in particular shear force, can be measured between the bearing device and a supporting device for supporting the bearing device by means of the piezoelements.Type: ApplicationFiled: January 24, 2019Publication date: April 22, 2021Inventors: Alexander SCHRICKER, Patrick FALK, Franz DREISIEBNER, Helmut KOKAL, Mario PROPST
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Patent number: 9618406Abstract: A sensor element (1) includes a substrate (2) and a strain-sensitive element (3) which is preferably applied to the substrate by means of thin-film technology and is used for measuring the deformation of the substrate (2) when pressure is applied or a force is introduced, the strain-sensitive element (3) including XAlOyN1-y, wherein X is a metal with a high melting temperature in the range of greater than 1400° C. and 0<y<0.4 applies. A passivation layer (5) can be applied to the strain-sensitive element (3).Type: GrantFiled: September 1, 2015Date of Patent: April 11, 2017Assignee: Piezocryst Advanced Sensories GmbHInventors: Dietmar Kroeger, Peter Schmid, Ulrich Schmid, Alexander Schricker, Christof Zarfl
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Patent number: 9291512Abstract: A sensor for measuring pressure and/or force includes at least one measuring assembly having at least one piezoelectric measuring element subjected to compressive stress for dynamic pressure and/or force measurement, and a diaphragm for introducing the pressure and/or the force onto at least the piezoelectric measuring element. The sensor also includes a further measuring assembly that is based on a different physical measuring principle for measuring static pressure and/or force.Type: GrantFiled: May 31, 2012Date of Patent: March 22, 2016Assignee: Piezocryst Advanced Sensorics GmbHInventors: Alexander Schricker, Andreas Mayer, Dietmar Kröger
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Publication number: 20160069758Abstract: A sensor element (1) includes a substrate (2) and a strain-sensitive element (3) which is preferably applied to the substrate by means of thin-film technology and is used for measuring the deformation of the substrate (2) when pressure is applied or a force is introduced, the strain-sensitive element (3) including XAlOyN1-ywherein X is a metal with a high melting temperature in the range of greater than 1400° C. and 0 <y <0.4 applies. A passivation layer (5) can be applied to the strain-sensitive element (3).Type: ApplicationFiled: September 1, 2015Publication date: March 10, 2016Applicant: PIEZOCRYST ADVANCED SENSORICS GMBHInventors: Dietmar Kroeger, Peter Schmid, Ulrich Schmid, Alexander Schricker, Christof Zarfl
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Publication number: 20140216175Abstract: A sensor for measuring pressure and/or force comprises at least one measuring assembly having at least one piezoelectric measuring element (2) subjected to compressive stress for dynamic pressure and/or force measurement, and a diaphragm (3) for introducing the pressure and/or the force onto at least the piezoelectric measuring element. So as to provide a further embodiment of a sensor for pressure or force measurement as indicated, which allows improved detection of static and dynamic effects, a further measuring assembly (4, 7) that is based on a different physical measuring principle for static pressure and/or force measurement is proposed for this sensor.Type: ApplicationFiled: May 31, 2012Publication date: August 7, 2014Applicant: PIEZOCRYST ADVANCED SENSORICS GMBHInventors: Alexander Schricker, Andreas Mayer, Dietmar Kröger
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Patent number: 8539845Abstract: A force-measuring ring includes an annular housing which contains at least one piezoelectric measuring element, and a pressure transmission element which is attached to the housing via inner and outer circular-annular membrane areas. The inner and outer membrane areas of the force measuring ring are situated on opposite sides of a symmetry plane defined by the at least one piezoelectric measuring element.Type: GrantFiled: February 26, 2009Date of Patent: September 24, 2013Assignee: Piezocryst Advanced Sensorics GmbHInventors: Alexander Schricker, Alparslan Turan, Alexander Friedl
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Patent number: 8113058Abstract: To render possible a high-quality, yet cost-effective provision suitable for mass production of a piezoelectric pressure transducer (1) with at least one piezoelectric measuring element (3, 3?, 3?) arranged on a housing base part (2), which measuring element is connected on the opposite side to a diaphragm (4), the measuring element (3, 3?, 3?) is fixed on an electrode sheet (5, 5?, 5?, 5??) or directly on the base part 2 or the diaphragm 4, wherein the electrode sheet (5, 5?, 5?, 5??) wraps conductively and positively as well as in a manner fixing the layers around a contact pin (7) insulated with respect to the base part (2) and projecting outwards.Type: GrantFiled: September 10, 2009Date of Patent: February 14, 2012Assignee: Piezocryst Advanced Sensorics GmbHInventors: Martin Baumgartner, Christian Reiter, Friedrich Anton Holzinger, Alexander Schricker
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Publication number: 20110219888Abstract: A force-measuring ring includes an annular housing which contains at least one piezoelectric measuring element, and a pressure transmission element which is attached to the housing via inner and outer circular-annular membrane areas. The inner and outer membrane areas of the force-measuring ring are situated on opposite sides of a symmetry plane defined by the at least one piezoelectric measuring element.Type: ApplicationFiled: February 26, 2009Publication date: September 15, 2011Inventors: Alexander Schricker, Alparslan Turan, Alexander Friedl
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Publication number: 20100058875Abstract: To render possible a high-quality, yet cost-effective provision suitable for mass production of a piezoelectric pressure transducer (1) with at least one piezoelectric measuring element (3, 3?, 3?) arranged on a housing base part (2), which measuring element is connected on the opposite side to a diaphragm (4), the measuring element (3, 3?, 3?) is fixed on an electrode sheet (5, 5?, 5?, 5??) or directly on the base part 2 or the diaphragm 4, wherein the electrode sheet (5, 5?, 5?, 5??) wraps conductively and positively as well as in a manner fixing the layers around a contact pin (7) insulated with respect to the base part (2) and projecting outwards.Type: ApplicationFiled: September 10, 2009Publication date: March 11, 2010Inventors: Martin Baumgartner, Christian Reiter, Friedrich Anton Holzinger, Alexander Schricker
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Patent number: 7603906Abstract: A piezoelectric sensor, preferably a pressure sensor, comprising at least two piezoelectric measuring elements placed in a housing, which are clamped between a membrane on the pressured side of the housing and a pick-up electrode electrically insulated against the housing. The piezoelectric measuring elements are fixedly attached to the pick-up electrode by thermo-compression or soldering and together with said pick-up electrode form a compact measuring element stack, which will significantly simplify assembly of the piezoelectric sensor.Type: GrantFiled: June 5, 2007Date of Patent: October 20, 2009Assignee: Piezocryst Advanced Sensorics GmbHInventors: Dietmar Kröger, Michael Hirschler, Alexander Friedl, Alexander Schricker, Ferdinand Krispel, Wolfgang Michelitsch
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Patent number: 7350494Abstract: The invention relates to a glow plug with integrated pressure sensor for measuring pressure in the combustion chamber of an internal combustion engine, where the shell of the glow plug has a section of reduced diameter on the side next to the combustion chamber and following a sealing cone, which section houses a glow coil and ends in a tip extending into the combustion chamber, and where the pressure sensor is positioned without cooling in the section of the glow plug next to combustion chamber. According to the invention the pressure sensor is subjected to pressure in radial direction, the glow coil of the glow plug or the electrical leads of the glow coil being guided towards the tip of the glow plug either by bypassing the pressure sensor or going through the pressure sensor.Type: GrantFiled: April 16, 2007Date of Patent: April 1, 2008Assignee: Piezocryst Advanced Sensorics GmbHInventors: Alexander Schricker, Alexander Friedl, Michael Hirschler, Dietmar Kröger
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Publication number: 20070277618Abstract: A piezoelectric sensor, preferably a pressure sensor, comprising at least two piezoelectric measuring elements placed in a housing, which are clamped between a membrane on the pressured side of the housing and a pick-up electrode electrically insulated against the housing. The piezoelectric measuring elements are fixedly attached to the pick-up electrode by thermo-compression or soldering and together with said pick-up electrode form a compact measuring element stack, which will significantly simplify assembly of the piezoelectric sensor.Type: ApplicationFiled: June 5, 2007Publication date: December 6, 2007Inventors: Dietmar Kroeger, Michael Hirschler, Alexander Friedl, Alexander Schricker, Ferdinand Krispel, Wolfgang Michelitsch
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Publication number: 20070245805Abstract: The invention relates to a glow plug with integrated pressure sensor for measuring pressure in the combustion chamber of an internal combustion engine, where the shell of the glow plug has a section of reduced diameter on the side next to the combustion chamber and following a sealing cone, which section houses a glow coil and ends in a tip extending into the combustion chamber, and where the pressure sensor is positioned without cooling in the section of the glow plug next to combustion chamber. According to the invention the pressure sensor is subjected to pressure in radial direction, the glow coil of the glow plug or the electrical leads of the glow coil being guided towards the tip of the glow plug either by bypassing the pressure sensor or going through the pressure sensor.Type: ApplicationFiled: April 16, 2007Publication date: October 25, 2007Inventors: Alexander Schricker, Alexander Friedl, Michael Hirschler, Dietmar Kroeger