Patents by Inventor Sabine Roesch
Sabine Roesch 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: 10914668Abstract: A sensor for detecting particles, in particular soot particles. The sensor comprises at least two measuring electrodes which are situated on a first layer made of an electrically insulating or conductive material, and at least two supply lines for the measuring electrodes. The supply lines are connected to the measuring electrodes respectively in a connection region. The supply lines are covered by at least one second layer made of an electrically insulating material such that the connection region is not covered by the second layer made of an electrically insulating material.Type: GrantFiled: March 13, 2015Date of Patent: February 9, 2021Assignee: Robert Bosch GmbHInventor: Sabine Roesch
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Publication number: 20180321182Abstract: A sensor element for an exhaust gas sensor includes a ceramic base body whose surface includes at least one surface region that is electrically insulating, the sensor element including at least one flat guide structure, which is electrically conductive, along the surface region of the base body. The guide structure is partially embedded in the base body in a direction perpendicular to the surface.Type: ApplicationFiled: November 3, 2016Publication date: November 8, 2018Inventors: Hans-Joerg Renz, Ingrid Gerner, Jens Schneider, Sabine Roesch, Sarah Richter
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Publication number: 20170146441Abstract: A sensor for detecting particles, in particular soot particles. The sensor comprises at least two measuring electrodes which are situated on a first layer made of an electrically insulating or conductive material, and at least two supply lines for the measuring electrodes. The supply lines are connected to the measuring electrodes respectively in a connection region. The supply lines are covered by at least one second layer made of an electrically insulating material such that the connection region is not covered by the second layer made of an electrically insulating material.Type: ApplicationFiled: March 13, 2015Publication date: May 25, 2017Inventor: Sabine Roesch
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Patent number: 8794046Abstract: Self-diagnosis of a particle sensor may be used for determining a particle content in a gaseous stream. The particle sensor may include at least two interlocking, interdigital electrodes and a heating element. The heating element may be separated from the electrodes by an insulation layer. The particle sensor may be heated in a regeneration phase and a soot load on the particle sensor can thereby be removed. A semiconductive layer may be formed in the insulation layer directly beneath the electrodes by means of external doping or auto-doping. To perform a self-diagnosis, a measurement voltage may be applied at least periodically between the electrodes and a self-diagnostic current may be measured.Type: GrantFiled: August 5, 2010Date of Patent: August 5, 2014Assignee: Robert Bosch GmbHInventors: Sabine Roesch, Benjamin Gaertner, Johannes Grabis, Alexander Hetznecker, Thorsten Ochs, Henrik Schittenhelm
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Patent number: 8182665Abstract: A sensor element is provided for gas sensors, in particular to determine particles in gas mixtures, the sensor element including at least one electrochemical measuring element exposed to the gas mixture to be determined, and at least one temperature-measuring element integrated into the sensor element. The temperature-measuring element includes a resistor track, which has an electric resistance of less than 180 Ohm at 0° C. The resistor track may thus be produced by thin-foil technology, such as screen printing, for example.Type: GrantFiled: October 20, 2006Date of Patent: May 22, 2012Assignee: Robert Bosch GmbHInventors: Lutz Dorfmueller, Sabine Roesch, Detlef Heimann, Stefan Rodewald, Helmut Marx, Henrico Runge, Harald Guenschel, Ralf Schmidt, Markus Siebert, Lothar Diehl, Thorsten Ochs, Juergen Sindel, Juergen Ruth, Andreas Schaak, Henrik Schittenhelm
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Patent number: 8035404Abstract: A method is described for controlling the soot deposition on sensors. A sensor element is provided, which includes a first electrode and a second electrode. Different measuring voltages U1 and U2 can be applied to the sensor element. During a first time period t1, the sensor element is operated at a higher voltage U1 until a triggering threshold AP of the sensor element is exceeded, while it is operated at a voltage U2, which is different from higher voltage U1, U2 being lower than voltage U1, during a second time period t2.Type: GrantFiled: April 15, 2005Date of Patent: October 11, 2011Assignee: Robert Bosch GmbHInventors: Frank Schnell, Lutz Dorfmueller, Ralf Schmidt, Sabine Roesch, Helmut Marx, Henrik Schittenhelm
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Patent number: 7886578Abstract: A sensor element for gas sensors for determining the concentration of particulates in gas mixtures, in particular soot sensors having at least one first measuring electrode applied to an electrically insulating substrate and at least one second measuring electrode, a voltage being applicable to the first and second measuring electrodes. The first measuring electrode is at least partly covered by a porous material open to diffusion of the particles to be determined.Type: GrantFiled: July 18, 2005Date of Patent: February 15, 2011Assignee: Robert Bosch GmbHInventors: Ralf Schmidt, Markus Siebert, Sabine Roesch, Helmut Marx, Henrik Schittenhelm
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Publication number: 20110030451Abstract: The invention relates to a method for the self-diagnosis of a particle sensor used for determining a particle content in a gaseous stream, wherein the particle sensor includes on its surface at least two interlocking, interdigital electrodes and a heating element separated from said electrodes by an insulation layer. Said particle sensor can be heated by said heating element in a regeneration phase, and a soot concentration can thereby be removed from the same. Provision is made according to the invention for a semiconductive layer to be formed in the insulation layer directly beneath the electrodes by means of external doping or auto-doping and in order to perform the self-diagnosis for a measurement voltage to be applied at least periodically between the electrodes and a self-diagnostic current to be measured.Type: ApplicationFiled: August 5, 2010Publication date: February 10, 2011Applicant: Robert Bosch GMBHInventors: Sabine Roesch, Benjamin Gaertner, Johannes Grabis, Alexander Hetznecker, Thorsten Ochs, Henrik Schittenhelm
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Patent number: 7872466Abstract: A sensor for determining the concentration of particles in gases, in particular of soot particles, has at least one substrate element, and a measuring area between at least one first and one second measuring electrode, the two measuring electrodes being configured so that by applying a voltage between the measuring electrodes, an asymmetric electric field is formed on the measuring area. The sides of the first and second measuring electrodes, facing one another, may not be parallel to one another, for example. Furthermore, at least one measuring electrode may have a structure along the side facing the other measuring electrode or along the finger electrodes.Type: GrantFiled: October 17, 2005Date of Patent: January 18, 2011Assignee: Robert Bosch GmbHInventors: Lutz Dorfmueller, Ralf Schmidt, Markus Siebert, Sabine Roesch, Helmut Marx, Henrik Schittenhelm, Gerd Teike
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Patent number: 7770432Abstract: A sensor element for gas sensors for determining the concentration of particles in gas mixtures, especially soot sensors, having at least one measuring device exposed to the gas to be determined, at least one heating element integrated into the sensor element and at least one temperature measurement element integrated into the sensor element, the heating element being situated within the sensor element spatially between the measuring device and the temperature measurement element.Type: GrantFiled: January 13, 2006Date of Patent: August 10, 2010Assignee: Robert Bosch GmbHInventors: Sabine Roesch, Thorsten Ochs, Bernhard Kamp, Henrik Schittenhelm
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Patent number: 7587925Abstract: A method for operating a sensor for recording particles in an exhaust gas flow and a device for carrying out the method are provided, in which at least one measure of the exhaust gas flow is ascertained and in which the measure of the exhaust gas flow is taken into consideration in the valuation of the particle sensor signal made available by the particle sensor. The procedure is based on the knowledge that the exhaust gas flow, for instance, the exhaust gas volume flow, has an influence on the particle sensor signal made available by the particle sensor, especially when the measuring effect is based on the depositing of particles on a sensor surface. Using the procedure, a possibly present cross sensitivity of the particle sensor with respect to different exhaust gas flows is taken into consideration, so that the measuring accuracy is increased.Type: GrantFiled: August 25, 2006Date of Patent: September 15, 2009Assignee: Robert Bosch GmbHInventors: Ralf Wirth, Heribert Haerle, Torsten Handler, Dirk Samuelsen, Werner Christl, Sabine Rösch, Bernhard Kamp, Michael Kolitsch, Katharina Schaenzlin
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Publication number: 20090217737Abstract: A sensor element is provided for gas sensors, in particular to determine particles in gas mixtures, the sensor element including at least one electrochemical measuring element exposed to the gas mixture to be determined, and at least one temperature-measuring element integrated into the sensor element. The temperature-measuring element includes a resistor track, which has an electric resistance of less than 180 Ohm at 0° C. The resistor track may thus be produced by thin-foil technology, such as screen printing, for example.Type: ApplicationFiled: October 20, 2006Publication date: September 3, 2009Applicant: ROBERT BOSCH GMBHInventors: Lutz Dorfmueller, Sabine Roesch, Detlef Heimann, Stefan Rodewald, Helmut Marx, Henrico Runge, Harald Guenschel, Ralf Schmidt, Markus Siebert, Lothar Diehl, Thorsten Ochs, Juergen Sindel, Juergen Ruth, Andreas Schaak, Henrik Schittenhelm
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Patent number: 7574895Abstract: A soot particle sensor for an exhaust system of an internal combustion engine includes a first electrode device and a second electrode device. The electrode devices are situated at a distance from one another and are able to be exposed to the gas stream, at least in some areas. It is provided that the electrode devices are separated from each other by an intermediate layer made of an electrically insulating material, and the electrode devices have free edges that are set apart from each other by the thickness of the intermediate layer and are able to be exposed to the gas stream.Type: GrantFiled: September 7, 2004Date of Patent: August 18, 2009Assignee: Robert Bosch GmbHInventors: Frank Schnell, Ralf Schmidt, Uwe Glanz, Sabine Rösch, Helmut Marx, Katharina Schaenzlin, Henrik Schittenhelm
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Publication number: 20090051376Abstract: A method is described for controlling the soot deposition on sensors. A sensor element is provided, which includes a first electrode and a second electrode. Different measuring voltages U1 and U2 can be applied to the sensor element. During a first time period t1, the sensor element is operated at a higher voltage U1 until a triggering threshold AP of the sensor element is exceeded, while it is operated at a voltage U2, which is different from higher voltage U1, U2 being lower than voltage U1, during a second time period t2.Type: ApplicationFiled: April 15, 2005Publication date: February 26, 2009Inventors: Frank Schnell, Lutz Dorfmueller, Ralf Schmidt, Sabine Roesch, Helmut Marx, Henrik Schittenhelm
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Publication number: 20080264146Abstract: A sensor element for gas sensors for determining the concentration of particles in gas mixtures, especially soot sensors, having at least one measuring device exposed to the gas to be determined, at least one heating element integrated into the sensor element and at least one temperature measurement element integrated into the sensor element, the heating element being situated within the sensor element spatially between the measuring device and the temperature measurement element.Type: ApplicationFiled: January 13, 2006Publication date: October 30, 2008Inventors: Sabine Roesch, Thorsten Ochs, Bernhard Kamp, Henrik Schittenhelm
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Publication number: 20080047847Abstract: A sensor element for gas sensors for determining the concentration of particulates in gas mixtures, in particular soot sensors having at least one first measuring electrode applied to an electrically insulating substrate and at least one second measuring electrode, a voltage being applicable to the first and second measuring electrodes. The first measuring electrode is at least partly covered by a porous material open to diffusion of the particles to be determined.Type: ApplicationFiled: July 18, 2005Publication date: February 28, 2008Applicant: ROBERT BOSCH GMBHInventors: Ralf Schmidt, Markus Siebert, Sabine Roesch, Helmut Marx, Henrik Schittenhelm
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Publication number: 20080024111Abstract: A sensor for determining the concentration of particles in gases, in particular of soot particles, has at least one substrate element, and a measuring area between at least one first and one second measuring electrode, the two measuring electrodes being configured so that by applying a voltage between the measuring electrodes, an asymmetric electric field is formed on the measuring area. The sides of the first and second measuring electrodes, facing one another, may not be parallel to one another, for example. Furthermore, at least one measuring electrode may have a structure along the side facing the other measuring electrode or along the finger electrodes.Type: ApplicationFiled: October 17, 2005Publication date: January 31, 2008Inventors: Lutz Dorfmueller, Ralf Schmidt, Markus Siebert, Sabine Roesch, Helmut Marx, Henrik Schittenhelm, Gerd Teike