Patents by Inventor Anna Mielnicka-Pate

Anna Mielnicka-Pate 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 and means for measuring sound intensity
    Patent number: 4655086
    Abstract: Sound intensity is determined by simultaneously measuring instantaneous acoustic pressure and instantaneous particle velocity at a single point. A condenser microphone having a vibrating diaphragm generates an output voltage proportional to the instantaneous acoustic pressure. A laser Doppler vibrometer measures the velocity of the vibrating diaphragm and a Doppler frequency tracker converts the velocity measurement into another output voltage which is proportional to the instantaneous acoustic particle velocity. The sound intensity is then calculated from the known components.
    Type: Grant
    Filed: April 30, 1985
    Date of Patent: April 7, 1987
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: Anna Mielnicka-Pate, David K. Holger