Patents Represented by Attorney Alred H. Rosen

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  • Motion detection and measurement
    Patent number: 4086808
    Abstract: Methods and apparatus are disclosed for measuring and monitoring vibrational or similar motion in mechanical elements. Retroreflectors on the elements are illuminated with monochromatic light, preferably a laser, and the reflected beams form an interference pattern. Shifts in the interference fringes correspond to motion which changes the relative length of the paths of reflected light and these shifts are counted or analyzed to monitor such motion. Both micro and macro motion can be monitored.
    Type: Grant
    Filed: July 26, 1976
    Date of Patent: May 2, 1978
    Assignee: Aerodyne Research, Inc.
    Inventors: Morton Camac, Fritz Bien