Patents by Inventor Werner BRÄU

Werner BRÄU 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).

  • Testing device and testing method for non destructive detection of a defect in a test piece by means of an eddy current
    Patent number: 8841902
    Abstract: A test set-up (10) for non-destructive detection of a flaw in a device being tested by means of an eddy current has an excitation coil (14), to which an excitation signal (SE) can be sent to act on the device being tested (16) with an electromagnetic alternating field, a receiving coil (17) to generate a coil signal (SP), which is a function of the flaw in the device being tested (16), an analog-digital converter (21), which is coupled to the receiving coil (17) on the input side, a filter arrangement (22), which is coupled to the analog-digital converter (21) on the input side and is designed for band-pass filtering and scan rate reduction, and a demodulator (27), which is coupled to an output of the filter arrangement (22) on the input side.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: September 23, 2014
    Assignee: Prüftechnik Dieter Busch AG
    Inventors: Heinrich Lysen, Werner Bräu
  • TESTING DEVICE AND TESTING METHOD FOR NON DESTRUCTIVE DETECTION OF A DEFECT IN A TEST PIECE BY MEANS OF AN EDDY CURRENT
    Publication number: 20130187643
    Abstract: A test set-up (10) for non-destructive detection of a flaw in a device being tested by means of an eddy current has an excitation coil (14), to which an excitation signal (SE) can be sent to act on the device being tested (16) with an electromagnetic alternating field, a receiving coil (17) to generate a coil signal (SP), which is a function of the flaw in the device being tested (16), an analog-digital converter (21), which is coupled to the receiving coil (17) on the input side, a filter arrangement (22), which is coupled to the analog-digital converter (21) on the input side and is designed for band-pass filtering and scan rate reduction, and a demodulator (27), which is coupled to an output of the filter arrangement (22) on the input side.
    Type: Application
    Filed: July 13, 2012
    Publication date: July 25, 2013
    Applicant: Prüftechnik Dieter Busch AG
    Inventors: Heinrich LYSEN, Werner BRÄU