Simplified schematic of the superconducting transformer and feedback system.
Amplification factor as a function of secondary turns for load inductances from 0 to , based on the geometry used in the transformer described here. The actual turn number chosen is , yielding a reasonable performance for both low-inductance short samples and higher-inductance test coils.
Artist impression of the superconducting transformer system. Dimensions are in millimeters.
Electrical equivalent circuit of a Rogowski coil.
Electrical schematic of the transformer and control system.
Block schematic of the transformer and control system.
Amplitude and phase of the transfer function of the transformer as a function of frequency.
Amplitude and phase of the transfer function of the total system as a function of frequency.
Secondary current as a function of primary current with the secondary heater switched on.
Effective ratio between the primary and secondary current.
Electric field as a function of transport current, measured on a Rutherford cable at 11 T applied magnetic field. The inset shows the data for Cable 1 on a double logarithmic scale.
Secondary cable and primary wire specifications (uninsulated).
Transformer system specifications.
Approximate Rogowski coil specifications.
Current measurement calibration summary.
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