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

Claim 21:
22. A method of measuring a magnetic field of an electromagnetic component:
instrumenting one or more portions of an electromagnetic component by placing an optical fiber in electromagnetic communication with the one or more portions of said electromagnetic component, the optical fiber comprising a fiber in optical communication with a magnetically sensitive material selected from the group consisting of perovskites, (La,Sr)MnO3, (La,Sr)(Co,Fe)O3, LaTiO3, and combinations thereof:
energizing the electromagnetic component;
interrogating the optical fiber when the electromagnetic component is energized by detecting changes in intensity, phase, and/or polarization of Rayleigh backscattering in the optical fiber;
determining changes in the magnetic field based on the detected changes in the intensity, phase, and/or polarization of Rayleigh backscattering;
wherein the changes in the magnetic field of the electromagnetic component alter the optical properties of the magnetically sensitive material in contact with the optical fiber;
creating a continuous, spatially resolved distribution of the magnetic field in the instrumented portions of the electromagnetic component.