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Vertical variable magnetic field device

A variable, magnetic field technology, applied in the direction of measuring devices, magnets, magnetic objects, etc., to achieve the effect of simple and easy device operation, strong practicability, and high magnetic field strength

Active Publication Date: 2011-04-06
北京中科微投资管理有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] So far, there is no available The magnet device with variable magnetic field of the company's TTP4 cryogenic probe station system

Method used

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Experimental program
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Embodiment Construction

[0035] In order to further explain the technical means and effects that the present invention takes to achieve the intended purpose of the invention, the specific implementation, structure, characteristics and features of the vertical variable magnetic field device proposed according to the present invention will be described below in conjunction with the accompanying drawings and preferred embodiments. Efficacy, detailed as follows.

[0036] see figure 1 Shown is a schematic diagram of the three-dimensional structure of the vertical variable magnetic field device of the present invention. The magnetic field device of the present invention is applied to The company's TTP4 cryogenic probe station, the device includes: top permanent magnet 1, bottom permanent magnet 2, sample stage 4 and multiple support screws 3. The support screw 3 is supported between the top permanent magnet 1 and the sample stage 4 , and the bottom permanent magnet 2 is arranged on the sample stage 4 . ...

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Abstract

The invention relates to a vertical variable magnetic field device which is applied to a low-temperature probe station system. The device comprises a top permanent magnet, a bottom permanent magnet, a sample holder and a plurality of support screws; one end of each support screw is fixed on the sample holder; the top permanent magnet is arranged on each support screw; and the bottom permanent magnet is arranged on the sample holder. The device of the invention changes the surface magnetic line density through precisely adjusting the altitude of the top permanent magnet under the condition that the interior of a TTP4 low-temperature probe station system housing in the company of Lakeshore<R> maintains the original high vacuum, thereby achieving the effect of changing a magnetic field. The invention has the advantages of simple and feasible scheme, low cost, stability, reliability, large change range of the magnetic field, and best compatibility with the system. Furthermore, the invention is favorable for wide popularization and application.

Description

technical field [0001] The invention relates to a magnetic field device, in particular to a vertical variable magnetic field device with variable magnetic field strength applied to a cryogenic probe station system. Background technique [0002] existing based on The vertical variable magnetic field device of the company's TTP4 cryogenic probe station system has played an irreplaceable and practical role in this system. The vertical variable magnetic field device constitutes the magnetic field scheme of the low-temperature Hall effect test system, and becomes an important part of the low-temperature Hall effect test system based on this system. The magnetic field in optional accessories offered by the company for this cryogenic probe station system is achieved by applying it outside the chamber, either through an electromagnet (Model EM4 and Model EM7) or a low-temperature superconducting magnet. [0003] For the electromagnet, the above two electromagnets can achieve the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R33/00H01F7/00
Inventor 陈晨贾锐李维龙姚嘉宁朱晨昕李昊峰刘明刘新宇
Owner 北京中科微投资管理有限责任公司
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