Development of swing vibrator on high temperature superconductor

Abstract

Based on the self-stabilization suspension characteristic of high-temperature superconductor in the field-cooling condition, a kind of swing vibrator has been developed. A magnetic platform attached with two sets of magnetic core coils levitates above the fixed superconducting bulks, reverse alternating electric current is delivered into the coils, and additional alternating magnetic field is generated. Then, the platform realizes the swing vibration driven by the interaction force in the magnetic field. To understand the developed swing vibrator, the vibration characteristic is investigated through the swing stiffness measurement on its structure, and the performance of swing vibrator is acquainted on the vibration test of open-loop single frequency and closed-loop random. The experimental results show that the developed swing vibrator on high-temperature superconductor possesses excellent mechanical performance. Therefore, the research also provides a new clue in the development of vibrator devices.