Patents by Inventor Matthias Goldammer

Matthias Goldammer 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).

  • Publication number: 20140146935
    Abstract: A method and a device produce X-ray images of objects, according to which artefacts caused by scattered radiation are corrected. To this end, a modulator field is used, that can be moved from a first position to a second position, thereby enabling modulator field areas with small and relatively large X-ray attenuation coefficients to be interchanged. An initial amplitude-modulated projection of the object is respectively produced in each of the two positions, and a scattered image associated with the projection is respectively calculated. This is especially suitable for rapid CT scans.
    Type: Application
    Filed: March 23, 2012
    Publication date: May 29, 2014
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Matthias Goldammer, Karsten Schörner
  • Publication number: 20140056407
    Abstract: Artifacts caused by scattered radiation when generating X-ray images of objects are corrected using a temporally alterable modulation of the primary radiation. A respective set of originally amplitude-modulated modulation projections of the object is generated and a respective scattered image allocated to the respective modulation projections is calculated. The method is particularly suitable for fast CT scans.
    Type: Application
    Filed: March 23, 2012
    Publication date: February 27, 2014
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Matthias Goldammer, Karsten Schörner
  • Patent number: 8656782
    Abstract: A method for the non-destructive material testing of a test object at least solid in some regions by subjecting the test object to ultrasonic waves and capturing the ultrasonic waves reflected within the test object. The method includes the steps, computer-supported dividing of the test object into a prescribed number of volume elements, subjecting the test object to ultrasound on a plurality of surface elements while probing the surface or at least one surface segment of the test object, capturing the sound waves reflected at the volume element while probing the plurality of surface elements on the surface or at least the surface segment of the test object, and in-phase addition of the sound waves reflected at the same volume elements and captured at various surface elements of the surface of the test object. Angle-dependent amplitude distribution is used in the sound field of the test head.
    Type: Grant
    Filed: April 4, 2008
    Date of Patent: February 25, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventors: Rainer Boehm, Matthias Goldammer, Werner Heinrich
  • Patent number: 8527215
    Abstract: Automated inspection system and method are provided for nondestructive inspection and evaluation of an electrically-conductive workpiece based on induction thermography. A movable carriage (15) may be arranged to translate the workpiece in an inspection location (18). An induction coil 20 is disposed at the inspection location. The induction coil is responsive to an excitation current to induce a flow of electrical current in a region of interest of the workpiece. A thermographic camera (22) is disposed at the inspection location. The thermographic camera is arranged to capture data indicative of a thermal response resulting from the flow of electrical current. A computer system (30) is configured to process the data from the thermographic camera to generate an indication of a presence of a discontinuity (e.g., a subsurface crack) in the workpiece.
    Type: Grant
    Filed: May 13, 2010
    Date of Patent: September 3, 2013
    Assignee: Siemens Energy, Inc.
    Inventors: Johannes L. Vrana, Hubert Mooshofer, Matthias Goldammer, Max Rothenfusser, Wolfgang Heine
  • Publication number: 20130167645
    Abstract: A technique is provided for determining an orientation of a defect present within a mechanical component using at least one ultrasonic head that applies ultrasonic signals to the mechanical component starting from various measurement points. Echo ultrasonic signals reflected by a point to be analyzed present within the component back to the measurement points are received by the same or a different ultrasonic head. A data processing unit analyzes the received echo ultrasonic signals as a function of a sound emission direction between each measurement ping and the point to be analyzed for determining the orientation of the defect. A distance between the measurement point and the point to be analyzed is calculated for every measurement point as a function of a signal propagation time between the point in time of emitting the ultrasonic signal and the point in time of receiving the echo ultrasonic signal reflected by a defect.
    Type: Application
    Filed: September 5, 2011
    Publication date: July 4, 2013
    Inventors: Matthias Goldammer, Werner Heinrich, Hubert Mooshofer
  • Patent number: 8197129
    Abstract: A method for determining parameters of a component using thermography, where at least one component is heated by a hot gas, is provided. Also provided is a device for determining component parameters using thermography, including a device for heating at least one component and a temperature sensor for detecting at least one temperature value of the component, wherein the device for heating the component is a hot gas emission device for the emission of a modulated, mostly pulsed, hot gas.
    Type: Grant
    Filed: September 7, 2007
    Date of Patent: June 12, 2012
    Assignee: Siemens Aktiengesellschaft
    Inventors: Matthias Goldammer, Werner Heinrich
  • Publication number: 20120055252
    Abstract: A method for the non-destructive material testing of a test object at least solid in some regions by subjecting the test object to ultrasonic waves and capturing the ultrasonic waves reflected within the test object. The method includes the steps, computer-supported dividing of the test object into a prescribed number of volume elements, subjecting the test object to ultrasound on a plurality of surface elements while probing the surface or at least one surface segment of the test object, capturing the sound waves reflected at the volume element while probing the plurality of surface elements on the surface or at least the surface segment of the test object, and in-phase addition of the sound waves reflected at the same volume elements and captured at various surface elements of the surface of the test object. Angle-dependent amplitude distribution is used in the sound field of the test head.
    Type: Application
    Filed: April 4, 2008
    Publication date: March 8, 2012
    Inventors: Rainer Boehm, Matthias Goldammer, Werner Heinrich
  • Publication number: 20120002036
    Abstract: A method and a device for induction thermography for non-destructive material examination are provided. A movement of a test object relative to an infrared camera with an inductor is carried out along any desired single or multi-dimensional path such that the relative movement for recording an image by the infrared camera is independent.
    Type: Application
    Filed: May 22, 2009
    Publication date: January 5, 2012
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Matthias Goldammer, Max Rothenfusser, Johannes L. Vrana
  • Publication number: 20110058651
    Abstract: In a device and a method for testing an object for material defects, a multi-emitter x-ray source, at least one x-ray detector and a control system to activate emitters of the multi-emitter x-ray source are thereby used. A selective activation of individual emitters or of a portion of the emitters is conducted according to the requirements of at least one item of information related to the tested object. The Flexible and low-cost materials testing is achieved.
    Type: Application
    Filed: September 9, 2010
    Publication date: March 10, 2011
    Inventors: JENS FUERST, MATTHIAS GOLDAMMER, MARKUS KOWARSCHIK, JUERGEN STEPHAN
  • Publication number: 20100292938
    Abstract: Automated inspection system and method are provided for nondestructive inspection and evaluation of an electrically-conductive workpiece based on induction thermography. A movable carriage (15) may be arranged to translate the workpiece in an inspection location (18). An induction coil 20 is disposed at the inspection location. The induction coil is responsive to an excitation current to induce a flow of electrical current in a region of interest of the workpiece. A thermographic camera (22) is disposed at the inspection location. The thermographic camera is arranged to capture data indicative of a thermal response resulting from the flow of electrical current. A computer system (30) is configured to process the data from the thermographic camera to generate an indication of a presence of a discontinuity (e.g., a subsurface crack) in the workpiece.
    Type: Application
    Filed: May 13, 2010
    Publication date: November 18, 2010
    Inventors: Johannes L. Vrana, Hubert Mooshofer, Matthias Goldammer, Max Rothenfusser, Wolfgang Heine
  • Patent number: 7822268
    Abstract: A method for processing thermography signals. A time series of radiometric data is measured from a surface (104) of an object (102) over a period of heating and subsequent cooling, and a mathematical curve (1, 2) is fit to the data. An amplitude aspect and one or more shape aspects are identified for each curve. The amplitude and shape aspects are then used together to characterize features such as defects in the object. The amplitude and shape aspects for an array of such data may be combined in a single noise-free visual display (100) by associating hue (color) with the shape aspect and luminance (brightness) with the amplitude aspect. Optionally, a second shape aspect may be identified and associated with saturation on the display. A visible image of the object may be overlaid on the display.
    Type: Grant
    Filed: June 6, 2006
    Date of Patent: October 26, 2010
    Assignee: Siemens Energy, Inc.
    Inventors: Max Rothenfusser, Robert E. Shannon, Matthias Goldammer, Christian Homma
  • Publication number: 20090201971
    Abstract: A method for determining parameters of a component using thermography, where at least one component is heated by a hot gas, is provided. Also provided is a device for determining component parameters using thermography, including a device for heating at least one component and a temperature sensor for detecting at least one temperature value of the component, wherein the device for heating the component is a hot gas emission device for the emission of a modulated, mostly pulsed, hot gas.
    Type: Application
    Filed: September 7, 2007
    Publication date: August 13, 2009
    Inventors: Matthias Goldammer, Werner Heinrich
  • Publication number: 20090046758
    Abstract: The induction thermography test stand has at least two inductors arranged angled relative to one another, at least in sections, and at least one alternating current source for powering the inductors with alternating currents which differ in terms of their frequency and/or phase such that a current with a temporally changing direction can be induced in a test module. With a method for determining flaws in test modules using induction thermography, a current with a temporally changing direction is induced in the test module.
    Type: Application
    Filed: July 7, 2008
    Publication date: February 19, 2009
    Inventors: Joachim Baumann, Matthias Goldammer, Max Rothenfusser, Johannes Vrana
  • Patent number: 7485882
    Abstract: A hand-held thermography system (8). A generator (10) supplies current to a transformer (15) in a handle (16). An induction coil (20) connected to the transformer (15) extends from the handle (16). The induction coil (20) induces eddy currents in a test object (50), producing a thermal topography on a surface (52) of the object (50) that reveals structural features including defects in the object. An infrared camera (24) mounted on the transformer (16) digitizes images of the thermal topography. A controller (12) processes the images, displays them on a monitor (14), and stores them in a digital memory (11) for evaluation. Digitized positional data relating the position of the image to the surface may also be stored. An operator (40) presses a trigger (17), signaling the controller (12) to start current to the induction coil (20) and simultaneously to acquire and process one or more images from the camera (24).
    Type: Grant
    Filed: June 15, 2006
    Date of Patent: February 3, 2009
    Assignee: Siemens Energy, Inc.
    Inventors: Paul J. Zombo, Robert E. Shannon, Max Rothenfusser, Matthias Goldammer, Christian Homma, Joachim Baumann
  • Publication number: 20080067455
    Abstract: A hand-held thermography system (8). A generator (10) supplies current to a transformer (15) in a handle (16). An induction coil (20) connected to the transformer (15) extends from the handle (16). The induction coil (20) induces eddy currents in a test object (50), producing a thermal topography on a surface (52) of the object (50) that reveals structural features including defects in the object. An infrared camera (24) mounted on the transformer (16) digitizes images of the thermal topography. A controller (12) processes the images, displays them on a monitor (14), and stores them in a digital memory (11) for evaluation. Digitized positional data relating the position of the image to the surface may also be stored. An operator (40) presses a trigger (17), signaling the controller (12) to start current to the induction coil (20) and simultaneously to acquire and process one or more images from the camera (24).
    Type: Application
    Filed: June 15, 2006
    Publication date: March 20, 2008
    Inventors: Paul J. Zombo, Robert E. Shannon, Max Rothenfusser, Matthias Goldammer, Christian Homma, Joachim Baumann
  • Publication number: 20070288177
    Abstract: A method for processing thermography signals. A time series of radiometric data is measured from a surface (104) of an object (102) over a period of heating and subsequent cooling, and a mathematical curve (1, 2) is fit to the data. An amplitude aspect and one or more shape aspects are identified for each curve. The amplitude and shape aspects are then used together to characterize features such as defects in the object. The amplitude and shape aspects for an array of such data may be combined in a single noise-free visual display (100) by associating hue (color) with the shape-aspect and luminance (brightness) with the amplitude aspect. Optionally, a second shape aspect may be identified and associated with saturation on the display. A visible image of the object may be overlaid on the display.
    Type: Application
    Filed: June 6, 2006
    Publication date: December 13, 2007
    Inventors: Max Rothenfusser, Robert E. Shannon, Matthias Goldammer, Christian Homma