Patents by Inventor Nicolas Auwaijan

Nicolas Auwaijan 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).

  • Guided wave-based system for cure monitoring of composites using piezoelectric discs and fiber Bragg gratings/phase-shifted Bragg gratings
    Patent number: 11590676
    Abstract: System and method for in-process cure monitoring of a material utilizes one or more sensors such as fiber Bragg gratings (FBGs) or phase-shifted FBGs (PS-FBGs) and at least one optical line fiber connected to the sensor(s). The sensor(s) and the optical line may be embedded in the material prior to curing the material may comprise a fiber reinforced polymer. Waves are excited into the material during curing thereof to form guided waves that propagate through the material. At least one wave metric of the guided waves is measured utilizing the sensor(s).
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: February 28, 2023
    Assignee: UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF NASA
    Inventors: Tyler B. Hudson, Fuh-Gwo Yuan, Nicolas Auwaijan, Frank L. Palmieri
  • GUIDED WAVE-BASED SYSTEM FOR CURE MONITORING OF COMPOSITES USING PIEZOELECTRIC DISCS AND FIBER BRAGG GRATINGS/PHASE-SHIFTED BRAGG GRATINGS
    Publication number: 20200061874
    Abstract: System and method for in-process cure monitoring of a material utilizes one or more sensors such as fiber Bragg gratings (FBGs) or phase-shifted FBGs (PS-FBGs) and at least one optical line fiber connected to the sensor(s). The sensor(s) and the optical line may be embedded in the material prior to curing the material may comprise a fiber reinforced polymer. Waves are excited into the material during curing thereof to form guided waves that propagate through the material. At least one wave metric of the guided waves is measured utilizing the sensor(s).
    Type: Application
    Filed: August 22, 2018
    Publication date: February 27, 2020
    Inventors: Tyler B. Hudson, Fuh-Gwo Yuan, Nicolas Auwaijan, Frank L. Palmieri