Abstract
The feasibility of superconducting magnets using low frequency generators is investigated. Namely superconducting magnet systems consisting of two coaxial DC coils and operating as a magnetic quadrupole is developed. This system generates a radial magnetic field up to 1 T in a "warm" volume of 16 cm in diameter and 20 cm long. In this nearly space-constant field a copper coil is placed at a temperature of 77 K. This coil is energized with DC and AC current in the 1-100 Hz range. Forces and characteristic of the forced vibration of both rotor and rotor with iron core are calculated and measured. An influence of AC magnetic field of the copper coil on losses in the superconducting windings is analyzed measured by a thermocouple inside the winding.
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