Patent ID: 11899080
Assignee: UNITED STATES DEPARTMENT OF ENERGY
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G

Claim 18:
19. A method for measuring a magnetic field of an electromagnetic component comprising:
instrumenting one or more portions of a component that generates a magnetic field when energized by placing an optical fiber in electromagnetic communication with one or more portions of said component generating a magnetic field, the optical fiber terminating with a cap comprising a material that has optical properties that change with the magnitude of a magnetic field incident on said material, wherein the material exhibits magnetic field dependent electronic conductivity;
energizing the component that generates a magnetic field;
interrogating the optical fiber when the component that generates a magnetic field is energized, wherein interrogating the optical fiber comprises detecting changes in the light traveling through the optical fiber;
determining changes in the magnetic field based on the detected changes in the light traveling through the optical fiber; and
identifying changes in the magnetic field of the component that generates a magnetic field; wherein the changes in the magnetic field of the component that generates a magnetic field alter the optical properties of the optical fiber as a result of the coating of the optical fiber.