Magnetic Suspension System with Large Distance of 82 mm Using Persistent Current in Superconducting Coil
Abstract
:1. Introduction
2. Superconducting Magnetic Suspension System
2.1. Structure
2.2. Superconducting Coil and Persistent Current
2.3. Suspension Force by Superconducting Coil
2.4. Mutual Interaction between Superconducting Coil and Copper Coils
3. Magnetic Suspension Experiments and Discussions
3.1. Control System
3.2. Suspension Experiments
4. Summary
- (a)
- The persistent currents from 30 A to 60 A are useful for the suspension system;
- (b)
- The mutual interaction between the superconducting coil and the copper coils is not so large for the control current;
- (c)
- The slope (corresponding to the sensor gain), at a distance of 82 mm, is applicable to the suspension system.
- (d)
- The persistent current of 50 A is applied to the superconducting coil.
- (e)
- The experimental results show that the object succeeds at being suspended at a distance of 82 mm and continues to keep the suspension for more than 60 s.
- (f)
- During the suspension, the displacement is small at less than 0.5 mm, and the amplitude of the control current is less than 3 A.
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
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Komori, M.; Imada, S.; Nemoto, K.; Asami, K.-i. Magnetic Suspension System with Large Distance of 82 mm Using Persistent Current in Superconducting Coil. Actuators 2022, 11, 48. https://doi.org/10.3390/act11020048
Komori M, Imada S, Nemoto K, Asami K-i. Magnetic Suspension System with Large Distance of 82 mm Using Persistent Current in Superconducting Coil. Actuators. 2022; 11(2):48. https://doi.org/10.3390/act11020048
Chicago/Turabian StyleKomori, Mochimitsu, Shun Imada, Kaoru Nemoto, and Ken-ichi Asami. 2022. "Magnetic Suspension System with Large Distance of 82 mm Using Persistent Current in Superconducting Coil" Actuators 11, no. 2: 48. https://doi.org/10.3390/act11020048
APA StyleKomori, M., Imada, S., Nemoto, K., & Asami, K.-i. (2022). Magnetic Suspension System with Large Distance of 82 mm Using Persistent Current in Superconducting Coil. Actuators, 11(2), 48. https://doi.org/10.3390/act11020048