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Permanent magnet like magnetic pole attracting each other test instrument

A technology of permanent magnets and experimental instruments, which is applied in the directions of instruments, educational appliances, teaching models, etc., to achieve the effects of simple structure, good experimental effect and ingenious conception.

Inactive Publication Date: 2007-03-14
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The same-sex repulsion and opposite-sex attraction of permanent magnet poles are well known, but the experimental phenomenon of same-sex attraction and related experimental instruments have not been reported yet.

Method used

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  • Permanent magnet like magnetic pole attracting each other test instrument
  • Permanent magnet like magnetic pole attracting each other test instrument
  • Permanent magnet like magnetic pole attracting each other test instrument

Examples

Experimental program
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Embodiment Construction

[0010] Describe the present invention in detail below in conjunction with accompanying drawing as follows:

[0011] As shown in Figure 1, the permanent magnet same-sex magnetic pole attraction tester of the present invention comprises four parts of fixed magnet column (1), fixed rod (2), base (3) and movable magnet column (4). The fixed rod (2) connects the fixed magnet column (1) and the base (3) to make it into a whole. Wherein, the center of the upper end of the fixed magnet column (1) is provided with an internal threaded sleeve, and the threaded sleeve is suitable for being screwed into the fixed rod (2) with external threads. The structures of movable magnet post (4) and fixed magnet post (1) are shown in Fig. 2 and Fig. 3 respectively, they are bonded by NdFeB permanent magnet post (or other strong permanent magnet) and soft iron post or It is formed by bonding ferromagnetic material (soft iron body or ordinary steel column) cylinder (7), permanent magnet cylinder (5) ...

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Abstract

The test instrument for experiment of like pole in permanent magnet to attract each other as one physical teaching instrument consists of fixed magnet column, fixing rod, pedestal and movable magnet column. Of the fixed magnet column and the movable magnet column, one has strong magnetic field and the other has weak magnetic field; and both of them are made of ferromagnetic material column, permanent magnet and soft iron column tip adhered together. Two magnetic fields with opposite directions have their zero composed magnetic field point in soft iron column. The present invention has smart and simple structure and good experiment effect.

Description

technical field [0001] The invention relates to a physical phenomenon experimental instrument, in particular to a physical demonstration experimental instrument in which permanent magnets attract magnetic poles of the same sex, and belongs to the field of physical teaching experimental instruments. Background technique [0002] It is well known that the same-sex repels the opposite-sex and attracts the opposite-sex of the magnetic poles of the permanent magnet, but the experimental phenomenon of the same-sex attraction and related experimental instruments have not been reported yet. Contents of the invention [0003] The object of the present invention is to provide a new magnetic physics demonstration experiment instrument, which has simple form, compact structure and convenient operation, and is suitable for the occasions of physics teaching and science and technology venue display. [0004] Technical scheme of the present invention is: [0005] A permanent magnet homos...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09B23/18
Inventor 路峻岭晏思贤夏忠东王延吉
Owner TSINGHUA UNIV