Patents by Inventor Wolfgang Wiedmann

Wolfgang Wiedmann 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: 7188432
    Abstract: The discovered temperature of the feeler is regularly determined and is recorded together with the associated calibrating data at this temperature. Temperature correction data for the feeler are established from this historic collection consisting of temperature values and of calibrating data. This temperature correction data can be used during a measurement at the respective temperature. This method avoids a separate and complicated setting of the temperature of the feeler or of the entire coordinate measuring device for the calibration.
    Type: Grant
    Filed: August 6, 2002
    Date of Patent: March 13, 2007
    Assignee: Carl Zeiss Industrielle Messtechnik GmbH
    Inventors: Karl Schepperle, Wolfgang Wiedmann
  • Publication number: 20050000105
    Abstract: The discovered temperature of the feeler is regularly determined and is recorded together with the associated calibrating data at this temperature. Temperature correction data for the feeler are established from this historic collection consisting of temperature values and of calibrating data. This temperature correction data can be used during a measurement at the respective temperature. This method avoids a separate and complicated setting of the temperature of the feeler or of the entire coordinate measuring device for the calibration.
    Type: Application
    Filed: August 6, 2002
    Publication date: January 6, 2005
    Inventors: Karl Schepperle, Wolfgang Wiedmann
  • Publication number: 20040135895
    Abstract: The invention relates to the production of image data, wherein a scene is scanned with a detector (1) which has a large number of sensor elements for producing image signals. An overall value is formed (unit 12) for each of the sensor elements, which represents a totality of image signals obtained from that sensor element, so that an overall value profile is obtained at least over a part of the scanned scene. The overall values for adjacent sensor elements are used to determine whether differences between these overall values satisfy a predetermined magnitude criterion which indicates inhomogeneities in signal sensitivities of these sensor elements (unit 14). If the magnitude criterion is satisfied, the image signals are corrected (unit 15) such that the magnitude criterion is no longer satisfied. The image data is produced from the corrected image signals or from the image signals which do not satisfy the magnitude criterion and is displayed on a screen (4).
    Type: Application
    Filed: November 24, 2003
    Publication date: July 15, 2004
    Inventor: Wolfgang Wiedmann
  • Patent number: 6272760
    Abstract: A damping device for vibration damping of components of a coordinate measuring equipment has a damping component which is frictionally connected to the component to be damped. The characteristic frequency of the damping component deviates from the characteristic frequency of the component to be damped.
    Type: Grant
    Filed: July 21, 1998
    Date of Patent: August 14, 2001
    Assignee: Carl-Zeiss-Stiftung trading as Carl Zeiss
    Inventors: Wolfgang Wiedmann, Carsten Würfel, Eugen Aubele
  • Patent number: 5848477
    Abstract: The invention is directed to a coordinate measuring apparatus wherein the drives (3, 5, 6) for the measuring sleds of the apparatus are controlled on circularly-shaped paths to machine-control adjust the spatial orientation of the probe pin 9. The probe pin is attached to a passive rotation-pivot joint and has a probe ball which is driven into one of several centering gaps of a body 10. In this way, a separate drive for the rotation-pivot joint 8 is not needed.
    Type: Grant
    Filed: February 11, 1997
    Date of Patent: December 15, 1998
    Assignee: Carl-Zeiss-Stiftung
    Inventors: Wolfgang Wiedmann, Ralf Bernhardt, Ronald Lonardoni
  • Patent number: 5764540
    Abstract: A coordinate measuring apparatus for measuring a workpiece with a probe head having a probe element for contacting the workpiece. The coordinate measuring apparatus includes: a plurality of sensors with each sensor supplying a signal indicative of a coordinate measurement position and a processing unit. An interface device between the plurality of sensors and the processing unit receives the signals and supplies a plurality of output signals to the processing unit representing respective position measurement values at any given instant of time. The processing unit includes at least one smoothing function block for continuously receiving a portion of the position measurement values. The smoothing function block is adapted to determine a final position measurement value (X.sub.E, Y.sub.E, Z.sub.E or R.sub.E) of the contact point of the probe element on the workpiece in a defined standstill of the apparatus by averaging a defined number of the received position measurement values to form a mean value.
    Type: Grant
    Filed: January 29, 1997
    Date of Patent: June 9, 1998
    Assignee: Carl-Zeiss-Stiftung
    Inventors: Gunter Grupp, Ralf Bernhardt, Otto Ruck, Berndt Kammleiter, Wolfgang Wiedmann
  • Patent number: 5333386
    Abstract: A computer-operated coordinate-measurement machine has two length-measurement systems arranged in parallel for measuring the longitudinal displacement of a probe carried by the portal (3-5) of the machine, and these two length-measurement systems (13, 14) may belong to different precision classes. A computer-associated device (16) forms an absolute position-measurement value (Ym) from length-measurement signals of the more precise measurement system (13) and said device forms a dynamic measurement or instantaneous deviation value (Ys-Ym) from the difference between length-measurement signals of the respective systems (13, 14). The computer of the machine calculates the effective instantaneous position (Ym+.DELTA.y) of the probe (9a, b, c) borne by the portal (3-5), using the instantaneous value of the transverse position of the probe on the portal, in conjunction with the absolute measurement value (Ym) and the dynamic measurement value (Ys-Ym).
    Type: Grant
    Filed: October 6, 1992
    Date of Patent: August 2, 1994
    Assignee: Carl-Zeiss-Stiftung Heidenheim/Brenz
    Inventors: Karl-Hermann Breyer, Eugen Aubele, Gunter Grupp, Peter Ebersbach, Wolfgang Wiedmann