Patents by Inventor Sven Loquai

Sven Loquai 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).

  • POF strain sensor using phase measurement techniques
    Patent number: 8346032
    Abstract: An optical fiber sensor has a measurement path and a reference path. Both paths each consist of two optical fibers and are fed with modulated light. The fibers of the reference path have a predefined difference in length, whereas the fibers of the measurement path are the same length. All fibers are at approximately the same temperature. An evaluation circuit determines the phase differences in each case between the fibers of the measurement path and of the reference path. A measurement value calculated from the phase differences is then output.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: January 1, 2013
    Assignee: Avago Technologies Fiber IP (Singapore) Pte. Ltd.
    Inventors: Harry Schilling, Hans Poisel, Olaf Ziemann, Michael Luber, Sven Loquai
  • POF STRAIN SENSOR USING PHASE MEASUREMENT TECHNIQUES
    Publication number: 20100232740
    Abstract: An optical fiber sensor has a measurement path and a reference path. Both paths each consist of two optical fibers and are fed with modulated light. The fibers of the reference path have a predefined difference in length, whereas the fibers of the measurement path are the same length. All fibers are at approximately the same temperature. An evaluation circuit determines the phase differences in each case between the fibers of the measurement path and of the reference path. A measurement value calculated from the phase differences is then output.
    Type: Application
    Filed: March 17, 2010
    Publication date: September 16, 2010
    Inventors: Harry Schilling, Hans Poisel, Olaf Ziemann, Michael Luber, Sven Loquai