Patents by Inventor Peter B. Ulrich

Peter B. Ulrich 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).

  • Power meter for high energy lasers
    Patent number: 4381148
    Abstract: A power meter for non-destructively measuring the power of a high energy er beam. The power meter includes a cell disposed in the flow path of a gas containing a laser radiation-absorbing species. The absorption coefficient of the absorbing species is small enough to allow the beam to pass through the cell essentially unaltered. The concentration of the absorbing species is modulated to modulate its absorption of the laser beam power and produce acoustic waves in the gas which can be detected and measured to give an absolute measurement of the power in the high energy laser beam.
    Type: Grant
    Filed: March 23, 1981
    Date of Patent: April 26, 1983
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Peter B. Ulrich, Gary L. Trusty, Daniel H. Leslie