CN201576087U - Magnetic force measuring device for weak magnetic materials - Google Patents
Magnetic force measuring device for weak magnetic materials Download PDFInfo
- Publication number
- CN201576087U CN201576087U CN200920313928XU CN200920313928U CN201576087U CN 201576087 U CN201576087 U CN 201576087U CN 200920313928X U CN200920313928X U CN 200920313928XU CN 200920313928 U CN200920313928 U CN 200920313928U CN 201576087 U CN201576087 U CN 201576087U
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- magnet
- loop bar
- weak magnetic
- cycloid
- magnetic material
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Abstract
A magnetic force measuring device for weak magnetic materials in the technical field of electromagnetism comprises a base, a loop bar, a cycloid, a magnet array and a fixing frame. The loop bar is fixed on the base, the top end of the loop bar is fixedly connected with one end of the cycloid, the other end of the cycloid is connected with a magnet to be detected, the magnet array is fixedly disposed on the fixing frame, the height of the magnet array is identical to that of the magnet to be detected, and the fixing frame is movably disposed on the base. The magnetic force measuring device does not need an additional power source, only revolves magnetic force and gravity without other force, is simple in structure and low in cost, and is convenient for being utilized as an experimental apparatus used for researching magnetic property of weak magnetic materials.
Description
Technical field
The utility model relates to a kind of device of electromagnetics technical field, specifically is a kind of weak magnetic material mgnetic observations device.
Background technology
The stressed physical features that reflect material of magnetic material in magnetic field.For diamagnetic material, magnetic susceptibility is negative value, after they are subjected to external magnetic field H effect, generates and H direction opposing magnetization intensity.When diamagnetic substance when the magnet, can produce slight repulsive force.And paramagnet, magnetic susceptibility is greater than 0, but numerical value is very little, after being subjected to the external magnetic field effect, generates the equidirectional magnetization with H, only shows faint attractive force.But weak magnetic material stressed very little in magnetic field can't be measured usually.
Do not find the application of similar techniques in this area through retrieval.
The utility model content
The utility model is at the prior art above shortcomings, a kind of weak magnetic material mgnetic observations device is provided, this device need not additional power source, have only magnetic force and gravity to participate in, there is not the intervention of the third power, and simple in structure, cost is low, the convenient magnetic that is used to study weak magnetic material as experiment instrument.
The utility model is achieved through the following technical solutions, the utility model comprises: base, loop bar, cycloid, magnet array and fixed mount, wherein: loop bar is fixed on the base, fixedly connected with an end of cycloid in the top of loop bar, the other end of cycloid is connected with magnet to be measured, magnet array be fixedly set on the fixed mount and height identical with magnet to be measured, fixed mount is movably set on the base.
Described magnet array comprises some permanent magnets, and the direction of magnetization of each piece permanent magnet is opposite with the direction of magnetization of adjacent permanent magnet, and the number of permanent magnet is n
2Individual, wherein: n is the natural number greater than 1.
Described permanent magnet is rectangular configuration or triangular structure.
Described magnet to be measured be shaped as cuboid or spheroid.
The utility model is accurately measured the magnetic force of weak magnetic material by the ratio of magnetic force and gravity.
Description of drawings
Fig. 1 is the utility model synoptic diagram.
Fig. 2 is the magnet array synoptic diagram.
Fig. 3 is a paramagnetic material sheet synoptic diagram.
Embodiment
Below embodiment of the present utility model is elaborated; present embodiment is being to implement under the prerequisite with technical solutions of the utility model; provided detailed embodiment and concrete operating process, but protection domain of the present utility model is not limited to following embodiment.
As shown in Figure 1, present embodiment comprises: base 1, loop bar 2, cycloid 3, magnet array 4 and fixed mount 5, wherein: loop bar 2 is fixed on the base 1, fixedly connected with an end of cycloid 3 in the top of loop bar 2, the other end of cycloid 3 is connected with magnet 6 to be measured, magnet array 4 be fixedly set on the fixed mount 5 and height identical with magnet to be measured 6, fixed mount 5 is movably set on the base 1 by leading screw 7.
As shown in Figure 1, on loop bar 2 and base 1, be fixed with horizontal ruler 8.
As shown in Figure 2, present embodiment adopts 4 kinds of magnet arrays 4 successively, comprises 4,9,16 and 8 permanent magnets 9 respectively, and the direction of magnetization of each piece permanent magnet 9 is opposite with the direction of magnetization of adjacent permanent magnet 9.
As shown in Figure 2,2 kinds of permanent magnets 9 of present embodiment employing are rectangular configuration or triangular structure.
As shown in Figure 3,3 kinds of magnets 6 to be measured that present embodiment adopts be shaped as the sheet cuboid, have the slit 10 of 0,1,7 different number on this sheet cuboid.
Measuring process is as follows:
By leading screw, regulating magnet position, and regulate loop bar height up and down guarantees diamagnetic and paramagnetic material sheet or ball are right against the magnet array center and also are parallel to the magnet array surface as far as possible.The height of loop bar can be read from the scale on the loop bar, and the position of magnet rectangular parallelepiped piece or magnet array can be read from scale.The angle of cycloid and vertical direction can be calculated from the calibration gauge on scale and the loop bar.Angle by length, cycloid and the vertical direction of cycloid can calculate the displacement of weak magnetic material sheet or ball denection vertical direction, and then can calculate the distance with magnet surface.Also the weight according to weak magnetic material sheet or ball calculates the acting force of magnetic field to material.Change different materials, from the size of repulsion or gravitation, the magnitude of magnetic susceptibility of research material.Magnet frame moves to be wanted slowly.
Utilize one group of aluminium flake that has different numbers slit respectively.The fast moving magnet frame, material piece is moved with magnet movement.From the motion accompanying situation, can investigate Lenz law.
Claims (6)
1. weak magnetic material mgnetic observations device, it is characterized in that, comprise: base, loop bar, cycloid, magnet array and fixed mount, wherein: loop bar is fixed on the base, fixedly connected with an end of cycloid in the top of loop bar, the other end of cycloid is connected with magnet to be measured, magnet array be fixedly set on the fixed mount and height identical with magnet to be measured, fixed mount is movably set on the base.
2. weak magnetic material mgnetic observations device according to claim 1, it is characterized in that described magnet array comprises some permanent magnets, the direction of magnetization of each piece permanent magnet is opposite with the direction of magnetization of adjacent permanent magnet, the number of permanent magnet is n*n, and wherein: n is the natural number greater than 1.
3. weak magnetic material mgnetic observations device according to claim 2 is characterized in that described permanent magnet is rectangular configuration or triangular structure.
4. weak magnetic material mgnetic observations device according to claim 1 is characterized in that, described magnet to be measured be shaped as cuboid or spheroid.
5. according to claim 1 or 4 described weak magnetic material mgnetic observations devices, what it is characterized in that described magnet to be measured is shaped as the sheet cuboid, has the slit of 0,1,7 different number on this sheet cuboid.
6. weak magnetic material mgnetic observations device according to claim 1 is characterized in that, is fixed with horizontal ruler on the described loop bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920313928XU CN201576087U (en) | 2009-11-03 | 2009-11-03 | Magnetic force measuring device for weak magnetic materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920313928XU CN201576087U (en) | 2009-11-03 | 2009-11-03 | Magnetic force measuring device for weak magnetic materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201576087U true CN201576087U (en) | 2010-09-08 |
Family
ID=42695964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920313928XU Expired - Fee Related CN201576087U (en) | 2009-11-03 | 2009-11-03 | Magnetic force measuring device for weak magnetic materials |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201576087U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103257326A (en) * | 2012-02-17 | 2013-08-21 | 上海联影医疗科技有限公司 | Material magnetism detection device and test method thereof |
| CN104969085A (en) * | 2012-07-13 | 2015-10-07 | 蒙彼利埃大学 | Micromagnetometry detection system and method for detecting magnetic signatures of magnetic materials. |
| RU172496U1 (en) * | 2016-10-12 | 2017-07-11 | федеральное государственное бюджетное образовательное учреждение высшего образования "Ивановский государственный энергетический университет имени В.И. Ленина" (ИГЭУ) | DEVICE FOR DETERMINING THE FORCE OF INTERACTION BETWEEN PERMANENT MAGNETS |
| CN107907842A (en) * | 2017-11-24 | 2018-04-13 | 武汉中科牛津波谱技术有限公司 | A kind of detection method of pole weak magnetic material |
| CN116482591A (en) * | 2023-04-28 | 2023-07-25 | 华中科技大学 | Device for measuring residual magnetism of object and rapidly demagnetizing |
-
2009
- 2009-11-03 CN CN200920313928XU patent/CN201576087U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103257326A (en) * | 2012-02-17 | 2013-08-21 | 上海联影医疗科技有限公司 | Material magnetism detection device and test method thereof |
| CN103257326B (en) * | 2012-02-17 | 2016-01-20 | 上海联影医疗科技有限公司 | A kind of magnetism of material pick-up unit and method of testing thereof |
| CN104969085A (en) * | 2012-07-13 | 2015-10-07 | 蒙彼利埃大学 | Micromagnetometry detection system and method for detecting magnetic signatures of magnetic materials. |
| CN104969085B (en) * | 2012-07-13 | 2018-03-02 | 蒙彼利埃大学 | For micro- the magnetometry detecting system and method for the magnetic characteristic for detecting magnetic material |
| RU172496U1 (en) * | 2016-10-12 | 2017-07-11 | федеральное государственное бюджетное образовательное учреждение высшего образования "Ивановский государственный энергетический университет имени В.И. Ленина" (ИГЭУ) | DEVICE FOR DETERMINING THE FORCE OF INTERACTION BETWEEN PERMANENT MAGNETS |
| CN107907842A (en) * | 2017-11-24 | 2018-04-13 | 武汉中科牛津波谱技术有限公司 | A kind of detection method of pole weak magnetic material |
| CN107907842B (en) * | 2017-11-24 | 2020-10-02 | 武汉中科牛津波谱技术有限公司 | Detection method of extremely weak magnetic material |
| CN116482591A (en) * | 2023-04-28 | 2023-07-25 | 华中科技大学 | Device for measuring residual magnetism of object and rapidly demagnetizing |
| CN116482591B (en) * | 2023-04-28 | 2024-03-29 | 华中科技大学 | Device for measuring residual magnetism of object and rapidly demagnetizing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100908 Termination date: 20131103 |