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Permanent magnet device used for Zeeman effect experiments

A permanent magnet and Zeeman effect technology, applied in the field of magnets, can solve the problems of difficult manufacturing, cumbersome system, and high cost, and achieve the effects of less impact on the surrounding environment, good magnetic field uniformity, and high magnetic field strength

Inactive Publication Date: 2013-04-10
ANHUI INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because of the need for an additional power supply, there will be a relatively strong current in the electromagnetic coil, which will pose a safety hazard. The stability of the current in the coil directly affects the stability of the magnetic field strength. Because of the current, it is easy to have a strong electric field to form interference, making In the test, there is a Stark effect that interferes with the Zeeman effect, which affects the experimental results and the Zeeman effect and the performance of the background technology instrument
This kind of system is expensive and difficult to manufacture, and the whole system is heavy and inconvenient to use
In addition, other permanent magnet systems need to generate a strong magnetic field, which requires a large volume and heavy weight. Due to the large volume of the magnet during use, it is easy to affect other nearby electronic systems and equipment

Method used

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  • Permanent magnet device used for Zeeman effect experiments
  • Permanent magnet device used for Zeeman effect experiments
  • Permanent magnet device used for Zeeman effect experiments

Examples

Experimental program
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Effect test

Embodiment 1

[0028] Such as Figure 5 As shown, a strong magnetic field can be generated in this way. If it is used in the Zeeman effect experiment of modern physics in colleges and universities, the two completed subsystem devices can be fixed on adjustable brackets, and the two subsystem devices can be adjusted through the brackets. The distance between them is used to realize the continuous adjustment of the magnetic field strength. If it is used for the measurement of the Zeeman effect of the light source and the background technology, Figure 5 The magnetic field strength of the device shown can be adjusted to an appropriate distance, and the magnetic field strength has good uniformity and stable strength, which can meet the requirements of the instrument.

[0029] If the magnet strength needs to reach 1.6T, you can choose 40 long strip magnets of 10mm*6mm*30mm and 2 pieces of long square magnets of 10*10*30. The strength can reach about 0.9T. When the two assemblies are placed faci...

Embodiment 2

[0031] Embodiment 1 just can assemble into the magnet that gets the hardware shop that buys on the market, and it is convenient to obtain materials. If you need a stronger one, you can customize the magnet, and the magnet volume can be made smaller. Specifically, as shown in Figure 6, the materials are all made of neodymium-iron shed strong magnetic materials. After assembly, the magnetic field strength of the end face of a single magnet module can reach 1.1T. When the distance between two magnet modules is 4mm, the magnetic strength can reach 1.6-2T. about. in, Figure 6a is a block diagram of a single magnet; Figure 6b Magnet assembly diagram for a single pole; Figure 6c For the overall assembly diagram.

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Abstract

The invention discloses a permanent magnet device used for Zeeman effect experiments. The permanent magnet device used for Zeeman effect experiments comprises a plurality of elongated magnets. The end face of one of the elongated magnets is square. The elongated magnet with the square end face serves as a middle magnet. A plurality of elongated magnets are perpendicularly fixed on four rectangular end faces around the middle magnet. The contact polarities of the elongated magnets and the four rectangular end faces around the middle magnet are the same. The permanent magnet device used for Zeeman effect experiments has the advantages of good uniformity, compactness, handiness, simple operation and little effect on electronic system and equipment around. The stability, continuation and adjustability of the magnetic induction intensity and the like can be achieved. The permanent magnet device used for Zeeman effect experiments is applicable to modern physical experiments in universities, and also applicable to relative instruments of the Zeeman effect background technology.

Description

technical field [0001] The invention mainly relates to the field of magnets, in particular to a permanent magnet device used in Zeeman effect experiments. Background technique [0002] At present, the strong magnetic device used in the Zeeman effect test generally adopts the electromagnet device, and the system includes the main body of the electromagnet, a stable and adjustable power supply and other parts. By adjusting the power supply to change the current of the electromagnetic coil to achieve the purpose of changing the magnetic induction intensity. It has the advantages of strong magnetic induction and continuous adjustment. However, because of the need for an additional power supply, there will be a relatively strong current in the electromagnetic coil, which will pose a safety hazard. The stability of the current in the coil directly affects the stability of the magnetic field strength. Because of the current, it is easy to have a strong electric field to fo...

Claims

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Application Information

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IPC IPC(8): G09B23/06G09B23/18H01F7/02
Inventor 刘文清李传新司福祺石建国刘凤垒胡仁志
Owner ANHUI INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI