Passive, Portable Vibration Isolation by Means of Permanent Magnets and High Temperature Superconductors

1995 ◽  
Author(s):  
Wei-Kan Chu
Keyword(s):  
High Temperature ◽  
Vibration Isolation ◽  
Permanent Magnets ◽  
High Temperature Superconductors

Permanent magnets composed of high temperature superconductors

1991 ◽  
Vol 70 (10) ◽  
pp. 6501-6503 ◽  
Author(s):  
Roy Weinstein ◽  
In‐Gann Chen ◽  
Jay Liu ◽  
Kwong Lau
Keyword(s):  
High Temperature ◽  
Permanent Magnets ◽  
High Temperature Superconductors

scholarly journals DEVELOPMENT AND TESTING PROTOTYPE OF HTS MODULE FOR THE SYSTEM OF MAGNETIC LEVITATION OF VEHICLE

2015 ◽  
Vol 1 (1) ◽  
pp. 37-48
Author(s):  
Anna Andreevna Demina ◽  
A V Safonov ◽  
O A Kovalchuk ◽  
E R Zapretilina ◽  
I Yu Rodin ◽  
...  
Keyword(s):  
High Temperature ◽  
Liquid Nitrogen ◽  
Permanent Magnets ◽  
Magnetic Levitation ◽  
High Temperature Superconductors ◽  
Liquid Nitrogen Temperature ◽  
Magnetic Systems ◽  
Working Model ◽  
The Magnetic Field ◽  
Prospects Of Application

In recent years increasingly discusses the prospects of application of high-temperature superconductors (HTS) as the winding current-carrying elements of magnetic systems for various purposes. It seems particularly attractive possibility of such systems at liquid nitrogen temperature. The article describes the prototype of module of the magnetic system which is made on the basis of high-temperature superconducting tapes, designed for the installation and testing on a working model of a static levitation. In the working model levitation of the platform carried by the interaction of the magnetic field of the assembly of permanent magnets mounted on the platform with a field similar to assemblies located in the track structure. Compact HTS module replaces the two assemblies of permanent magnets mounted on the platform. Each block of the module represents HTS racetrack coil with current inputs, power structure, positioning system and bracing which is placed in a cryostat, providing at minimum wall thickness of the required mechanical strength and thermal insulation at liquid nitrogen temperature. The prototype of unified superconducting module successfully passed preliminary tests.

Stable levitation of steel rotors using permanent magnets and high‐temperature superconductors

1994 ◽  
Vol 76 (1) ◽  
pp. 577-580 ◽  
Author(s):  
J. R. Hull ◽  
J. L. Passmore ◽  
T. M. Mulcahy ◽  
T. D. Rossing
Keyword(s):  
High Temperature ◽  
Permanent Magnets ◽  
High Temperature Superconductors

scholarly journals Development of model setup and study of levitation and lateral stabilization of the platform with the use of high-temperature superconductors of the 2nd generation

2015 ◽  
Vol 1 (2) ◽  
pp. 62-84 ◽  
Author(s):  
Yu F Antonov ◽  
N K Danilov ◽  
S A Kaznacheev ◽  
Ya I Melnikov ◽  
E I Morozova ◽  
...  
Keyword(s):  
High Temperature ◽  
Permanent Magnets ◽  
High Temperature Superconductors ◽  
Experimental Setup ◽  
2Nd Generation ◽  
Lateral Forces ◽  
Measurement Results ◽  
The Creation ◽  
Model Setup ◽  
The Stability

The article describes the creation of an experimental setup to investigate the effect of magnetostatic levitation using magnetic rail (as a base) and platform with permanent magnets in combination with bulk high-temperature superconductors of the 2nd generation. The article provides evidence of the stability of the hybrid pole, the measurement results of the vertical and lateral forces and the dependence of the levitation gap of the sequence of operations of cooling high-temperature superconductors of the 2nd generation. The article provides evidence of the ability to achieve static levitation with a gap of more than 10 mm when using bulk high-temperature superconductors of the 2nd generation and the efficiency of their application to provide lateral stabilization.

A New Class of Permanent Magnets - High Temperature Superconductors

1991 ◽  
Vol 232 ◽  
Author(s):  
In-Gann Chen ◽  
Jay Liu ◽  
Roy Weinstein
Keyword(s):  
Magnetic Field ◽  
High Temperature ◽  
High Temperature Superconductor ◽  
Permanent Magnets ◽  
High Temperature Superconductors ◽  
Type Ii ◽  
Type Ii Superconductors ◽  
Trapped Field ◽  
New Class ◽  
Trapped Magnetic Field

ABSTRACTFor type II superconductors (SC), magnetic field can be trapped, or pinned due to persistent internal current. Upon magnetization, SC samples behave in some ways similar to a metallic permanent magnet. The trapped field is high and quasi-persistent, and we refer to it as a “magnet replica”. So far, nearly 1T @ 65 K, and over 0.4 T @ 77 K have been measured within small (about 1 × 1 × 0.6 cm3) melt-textured Yba2Cu3Ox (MT-Y123) samples. Based on our theoretical studies, extrapolation to larger scale magnets indicates that 2–4 Tesla in liquid Nitrogen (and even larger field at lower temperatures) is achievable with our high temperature superconductor (HTS) material. Using this effect, magnets with dipole, quadrupole, or more complicated configurations can be made of existing MT-Y123 material, thus bypassing the need for HTS wires. Two types of motors have been successfully constructed, using the trapped field in MT-Y123 samples.The spatial distribution of the trapped magnetic field on MT-Y123 materials has been studied. A phenomenological model has been developed to account for the trapped field intensity and profile in HTS samples. General features of magnet replicas by HTS will also be discussed.

Effect of size and geometry on levitation force measurements between permanent magnets and high‐temperature superconductors

1991 ◽  
Vol 70 (10) ◽  
pp. 6504-6506 ◽  
Author(s):  
Y. S. Cha ◽  
John R. Hull ◽  
Thomas M. Mulcahy ◽  
Thomas D. Rossing
Keyword(s):  
High Temperature ◽  
Permanent Magnets ◽  
Levitation Force ◽  
High Temperature Superconductors ◽  
Force Measurements

scholarly journals Peculiarities of simulation of magnetic field in electromechanical nodes of magnetic-levitation transport system by the method of secondary sources

2015 ◽  
Vol 1 (2) ◽  
pp. 49-61 ◽  
Author(s):  
Dmitry Maksimovic Filippov
Keyword(s):  
Magnetic Field ◽  
High Temperature ◽  
Liquid Nitrogen ◽  
Permanent Magnets ◽  
Magnetic Levitation ◽  
High Temperature Superconductors ◽  
Liquid Nitrogen Temperature ◽  
Magnetic Systems ◽  
Secondary Sources ◽  
Working Model

In recent years increasingly discusses the prospects of application of high-temperature superconductors (HTS) as the winding current-carrying elements of magnetic systems for various purposes. It seems particularly attractive possibility of such systems at liquid nitrogen temperature. The article describes the prototype of module of the magnetic system which is made on the basis of high-temperature superconducting tapes, designed for the installation and testing on a working model of a static levitation. In the working model levitation of the platform carried by the interaction of the magnetic field of the assembly of permanent magnets mounted on the platform with a field similar to assemblies located in the track structure. Compact HTS module replaces the two assemblies of permanent magnets mounted on the platform. Each block of the module represents HTS racetrack coil with current inputs, power structure, positioning system and bracing which is placed in a cryostat, providing at minimum wall thickness of the required mechanical strength and thermal insulation at liquid nitrogen temperature. The prototype of unified superconducting module successfully passed preliminary tests.

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