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Adiabatic demagnetization device

A demagnetization and adiabatic technology, used in lighting and heating equipment, machines using electrical/magnetic effects, refrigerators, etc., can solve the problem of not being able to maintain stability for a long time

Pending Publication Date: 2022-04-12
キウトラゲーエムベーハー
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This means that the low temperature can only be achieved for a short period of time and cannot be maintained stably for a long time

Method used

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  • Adiabatic demagnetization device
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Examples

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Embodiment Construction

[0051] Reference is now made to the details of various embodiments of the invention, one or more examples of which are shown in the accompanying drawings. In the following description of the drawings, the same reference numerals refer to the same components. In general, only the differences with respect to the various embodiments are described. Each example is offered by way of explanation of the disclosure, not limitation of the disclosure. Furthermore, features illustrated or described as part of one embodiment can be used or combined with other embodiments to yield a further embodiment. It is intended that the description include such modifications and variations.

[0052] figure 1 The working principle of the adiabatic demagnetization refrigerator is shown.

[0053] Adiabatic demagnetization refrigeration (ADR) is a cooling method that exploits the entropy dependence of paramagnetic spin systems (e.g., magnetic moments due to electron orbital motion and electron spins ...

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Abstract

The present disclosure relates to a method of controlling an adiabatic demagnetization apparatus. The method includes changing at least an operating parameter of the adiabatic demagnetization device.

Description

technical field [0001] The present disclosure relates to a method of controlling an adiabatic demagnetization device and the adiabatic demagnetization device. In particular, the present disclosure relates to a method of controlling a multi-stage adiabatic demagnetization device within a predetermined temperature range. Background technique [0002] Cryostats are commonly used to maintain a low temperature of a sample mounted within the cryostat. Low temperatures can be achieved by using, for example, cryogenic fluid baths such as liquid helium. However, cooling media such as liquid helium are constantly evaporating due to external and / or internal heat input in the cryostat and therefore require periodic refilling. This requires considerable time and resources, so such cryostats are expensive to operate. [0003] To overcome the above disadvantages, refrigerant-free cryostats have been developed. Refrigerant-free cryostats are available in refrigerant-free closed cycle sy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B21/00
CPCF25B21/00F25B2321/0021F25B9/145F25D19/006
Inventor A·雷格纳特J·斯帕莱克
Owner キウトラゲーエムベーハー
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