Patents by Inventor James Arroyo

James Arroyo 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 apparatus for measuring acceleration using a fiber optic accelerometer
    Patent number: 6779402
    Abstract: A system and method for measuring acceleration using a fiber optic accelerometer having a pair of fiber optic coils positioned around a deformable support structure. The support structure possesses a nominally cylindrical shape with the fiber optic coils being wound around opposite ends of the cylindrical support structure from each other. The support structure deforms from its nominally cylindrical shape to a conical shape in response to acceleration along a sensing axis. The changing shape of the support structure causes one of the fiber optic coils to expand while the other of the fiber optic coils contracts. The fiber optic coils are included in an interferometer such that acceleration along the sensing axis produces a phase difference between light signals propagating in the fiber optic coils resulting from their expansion and contraction.
    Type: Grant
    Filed: October 18, 2002
    Date of Patent: August 24, 2004
    Assignee: Northrop Grumman Corporation
    Inventors: Mayer Rud, James Arroyo, Michael J. Tweedy
  • Method and apparatus for measuring acceleration using a fiber optic accelerometer
    Publication number: 20040074299
    Abstract: A system and method for measuring acceleration using a fiber optic accelerometer having a pair of fiber optic coils positioned around a deformable support structure. The support structure possesses a nominally cylindrical shape with the fiber optic coils being wound around opposite ends of the cylindrical support structure from each other. The support structure deforms from its nominally cylindrical shape to a conical shape in response to acceleration along a sensing axis. The changing shape of the support structure causes one of the fiber optic coils to expand while the other of the fiber optic coils contracts. The fiber optic coils are included in an interferometer such that acceleration along the sensing axis produces a phase difference between light signals propagating in the fiber optic coils resulting from their expansion and contraction.
    Type: Application
    Filed: October 18, 2002
    Publication date: April 22, 2004
    Inventors: Mayer Rud, James Arroyo, Michael J. Tweedy