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Demonstrative test device for high-temperature superconductor magnetic suspension angular momentum conservation

A technology of conservation of angular momentum and high-temperature superconductivity, applied in the field of high-temperature superconducting maglev conservation of angular momentum demonstration experimental devices, can solve problems such as consumption, low accuracy of the law of conservation of angular momentum, and unsatisfactory demonstration effects

Inactive Publication Date: 2015-05-06
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] (1) Due to the existence of friction resistance caused by the bearing, a certain amount of energy will be consumed during the rotation process, and the demonstration effect is not ideal
[0005] (2) Due to the loss of energy, the accuracy of the law of conservation of angular momentum is low
[0006] Due to the existence of the above two defects, it directly leads to the accuracy of the law of conservation of angular momentum

Method used

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  • Demonstrative test device for high-temperature superconductor magnetic suspension angular momentum conservation

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Embodiment 1

[0014] Referring to the accompanying drawings, this high-temperature superconducting magnetic levitation angular momentum conservation demonstration experimental device includes a high-temperature superconducting magnetic levitation angular momentum conservation demonstration experimental device, including a circular low-temperature container (11) with a hole in the center fixed on a panel (1) It is characterized in that it is a disk composed of six hexagonal superconducting blocks (10), which is set on a circular metal tray (2) with a hole in the center, and fixed in a cryogenic container (11 ) inside; a metal disc (9) with a hole in the center is set on the upper end of a magnet disc (4) with a hole in the center, and the center of the hole in the metal disc (9) with a hole in the center A fixed sliding sleeve (7) is arranged at the place to form a whole and is suspended directly above the metal tray (2) in a superconducting state; four symmetrical Arc-shaped grooves (8), on...

Embodiment 2

[0016] Referring to the figure, this high-temperature superconducting magnetic levitation angular momentum conservation demonstration experimental device is:

[0017] 1) Combine six hexagonal superconducting blocks (10) into a circle and fix them on the metal tray (2), and place them in the cryogenic container (11). Then the integrated magnet disk (4) and metal disk (9) are arranged on the superconducting block (10) with a gap of 8 mm (pre-leveled with a heat insulating material plate), in the cryogenic container (11) Liquid nitrogen is injected, and when the superconducting block (10) is in a superconducting state, the backing plate is drawn, and the integrated magnet disc (4) and metal disc (9) are in a suspended state.

[0018] 2) Use a rigid string (6) to radially connect four movable metal cylindrical weights (5) in the arc-shaped groove, and the string (6) enters the center hole through the center of the metal disc, and the circular belt hole The disc magnet connected t...

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Abstract

The invention relates to a demonstrative test device for high-temperature superconductor magnetic suspension angular momentum conservation. The demonstrative test device comprises a suspension system and a rotating system, wherein the suspension system is composed of a panel, a low-temperature container, a metal pallet and a disc formed by splicing multiple high-temperature superconductor blocks; the rotating system is composed of a magnet disc, a metal disc, a fixed sliding sleeve and weights; and when the metal disc is driven to rotate, an external force is utilized to move the symmetrical weights toward the center of the metal disc, so that the rotating speed of the metal disc is increased. The demonstrative test device has the advantages of novel design, simple structure, obvious effect and capability of directly and accurately reflecting the effect of the angular momentum conservation under high-temperature superconductor magnetic suspension.

Description

technical field [0001] The invention relates to a high-temperature superconducting magnetic levitation angular momentum conservation demonstration experiment device. Background technique [0002] In the traditional demonstration experiment of the conservation of angular momentum in physics, a rotating shaft and a bearing are usually combined to form a rotating device, and the radial distance of the sliding object is changed by the radial force, so that the moment of inertia of the system changes, thereby achieving faster rotation speed ( slow) demonstration of the conservation of angular momentum. There are bearing friction and energy consumption in the conventional demonstration experiment of conservation of angular momentum, and the accuracy is low. [0003] There are two flaws in the conventional demonstration method of conservation of angular momentum: [0004] (1) Due to the existence of friction resistance caused by bearings, a certain amount of energy will ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09B23/10
Inventor 张义邴李铭邱静和
Owner SHANGHAI UNIV