Patents by Inventor Gitte Z. Olsen

Gitte Z. Olsen 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).

  • Method for providing a desired sound field as well as an ultrasonic transducer for carrying out the method
    Patent number: 4910838
    Abstract: The present invention provides a substantially gauss-shaped sound field by means of an ultrasonic transducer, the potential on one side of the transducer being varied continuously by means of a thick-film electrode applied in a uniform or varying thickness. The thick-film can be a resistance paste or a conductive paste applicable in different thicknesses onto selected portions of the surface in question. The resistance paste can for instance be trimmed to different resistance values on selected portions of the surface. Such a technique makes it possible to alter the distribution of the potential so as to vary the distribution of the pressure in the sound field in such a manner that for instance a substantially gauss-shaped sound field is obtained.
    Type: Grant
    Filed: December 29, 1988
    Date of Patent: March 27, 1990
    Assignee: Aktieselskabet Bruel & Kjaer
    Inventors: Morten B. Jensen, Bjarne Stage, Gitte Z. Olsen