CN203433721U - Demonstration apparatus for testing of surrounding magnetic field of electrified straight wire - Google Patents
Demonstration apparatus for testing of surrounding magnetic field of electrified straight wire Download PDFInfo
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- CN203433721U CN203433721U CN201320569620.8U CN201320569620U CN203433721U CN 203433721 U CN203433721 U CN 203433721U CN 201320569620 U CN201320569620 U CN 201320569620U CN 203433721 U CN203433721 U CN 203433721U
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- straight wire
- magnetic field
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- binding post
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Abstract
The utility model relates to the technical field of teaching equipment, especially to a demonstration apparatus for testing of a surrounding magnetic field of an electrified straight wire. The demonstration apparatus comprising a casing (1), binding posts (2), a straight wire (3), chutes (4), and magnets (5) is characterized in that the binding posts (2), the straight wire (3), and the chutes (4) are arranged at the upper surface of the casing (1); the straight wire (3) is arranged in the middle of the upper surface of the casing (1) and the binding posts (2) are respectively arranged at the two ends; the binding posts (2) are respectively connected with the two ends of the straight wire (3); and a plurality of chutes (4) are uniformly distributed at the two sides of the straight wire (3) and a plurality of magnets (5) are arranged inside the chutes (4). The provided demonstration apparatus with the simple structure is designed ingeniously. On the basis of the simple structure, the magnetic field situation of the straight wire after electrification can be demonstrated completely, visually and vividly.
Description
Technical field
The utility model relates to teaching equipment technical field, particularly a kind of apparatus for demonstrating for the test of electromotion straight wire surrounding magnetic field.
Background technology
Magnetic field is a kind of cannot see, and impalpable particular matter, it has the radiation characteristic of wave-particle, there is magnetic field around in magnet, the interaction between magnet is exactly vehicular with magnetic field, the material of a kind of specific form that electric current, moving charge, magnet or changing electric field surrounding space exist, because the magnetic of magnet derives from electric current, electric current is the motion of electric charge, thereby puts it briefly, and magnetic field is produced by the variation of moving charge or electric field.
Electromagnetic field (electromagnetic field) is entity and the general name that has the Electric and magnetic fields of inner link, interdependence, time dependent electric field produces magnetic field, time dependent magnetic field produces electric field, both reciprocal causations, form electromagnetic field, and electromagnetic field can be caused by the charged particle of variable motion, the electric current that also can be changed by power causes, no matter reason how, always electromagnetic field is propagated to surrounding with the light velocity, form electromagnetic wave.Electromagnetic field is that the matchmaker of electromagnetic action passs thing, has energy and momentum, is a kind of form that material exists.
After straight wire energising, it there will be magnetic field around, this phenomenon is electromagnetic important research subject in physics teaching in secondary school now, in teaching process, school does not often have special apparatus for demonstrating demonstrating to student this visual phenomenon image, student, in learning process, is also often very abstract understanding.
Summary of the invention
The purpose of this utility model is, a kind of apparatus for demonstrating for the test of electromotion straight wire surrounding magnetic field is provided, and for producing this phenomenon of magnetic field for electromotion straight wire in physics teaching in secondary school now, often there is no special apparatus for demonstrating to the problem of student's demonstration.
To achieve these goals, the technical solution of the utility model is specific as follows:
A kind of apparatus for demonstrating for the test of electromotion straight wire surrounding magnetic field, comprise casing 1, binding post 2, straight wire 3, chute 4, magnet 5, it is characterized in that, binding post 2, straight wire 3, chute 4 are all arranged at casing 1 upper surface, described straight wire 3, be arranged at described casing 1 upper surface centre position, its two ends arrange respectively binding post 2, described binding post 2, it is connected with described straight wire 3 two ends respectively, described straight wire 3, and its both sides are uniformly distributed respectively some chutes 4, described chute 4, is provided with some magnet 5 in it.
Described a kind of apparatus for demonstrating for the test of electromotion straight wire surrounding magnetic field, is characterized in that, described magnet 5, and it is specially bipolar magnet.
Described a kind of apparatus for demonstrating for electromotion straight wire surrounding magnetic field test, is characterized in that, described magnet 5, and its structure is specially, and a side is provided with connecting rod, and connecting rod one end is connected with magnet 5 one sides, in the chute 4 described in other end cooperation is installed on.
The straight wire 3 of the utility model utilization is after energising, due to electromagnetic induction, there is the phenomenon in magnetic field around in it, and can utilize magnet 5 after experiencing this magnetic field, the corner of magnet 5 changes, draw out the principle of magnetic field line, by binding post 2, straight wire 3 is fixedly installed on casing 1, in straight wire 3 both sides, chute 4 is set, at the interior magnet 5 that arranges of chute 4, after straight wire 3 energisings, there is magnetic field around in it, sliding magnet 5, magnet 5 is approached or away from straight wire 3, magnet 5 is according to the distribution situation in magnetic field, there is different deflection angles, according to the magnetic pole of the deflection angle situation of magnet 5 and magnet 5, can observe distribution situation and the magnetic direction in magnetic field.
The beneficial effects of the utility model are, simple in structure, modern design, practical reliable, the design of binding post 2, can be connected external power supply with the utility model, realize this device electric, the design of chute 4, can make operator by magnet 5 within it portion constantly slide, utilize the variation of the deflection angle of magnet 5 after experiencing magnetic field, observe straight wire 3 the phenomenon in electric rear generation magnetic field, the bipolar design of magnet 5, can make operator according to the magnetic pole situation of magnet 5, know the direction in magnetic field.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein, 1. casing, 2. binding post, 3. straight wire, 4. chute, 5. magnet.
Embodiment
For an apparatus for demonstrating for electromotion straight wire surrounding magnetic field test, comprise casing 1, binding post 2, straight wire 3, chute 4, magnet 5.
As shown in Figure 1, binding post 2, straight wire 3, chute 4 is all arranged at casing 1 upper surface, described straight wire 3, be arranged at described casing 1 upper surface centre position, its two ends arrange respectively binding post 2, described binding post 2, it is connected with described straight wire 3 two ends respectively, described straight wire 3, its both sides are uniformly distributed respectively some chutes 4, described chute 4, in it, be provided with some magnet 5, described magnet 5, it is specially bipolar magnet, described magnet 5, its structure is specially, one side is provided with connecting rod, and connecting rod one end is connected with magnet 5 one sides, the other end coordinates in the chute 4 described in being installed on.
The utility model is when operation, operating personnel are connected power supply by electric wire with binding post 2, binding post 2 is given straight wire 3 by power delivery, straight wire 3 obtains electric, straight wire 3 electric after due to electromagnetic induction phenomenon, it starts to produce magnetic field around, operator is by sliding magnet 5, make magnet 5 experience magnetic field, magnet 5 is according to the distribution situation in magnetic field, there is different deflection angles, according to the magnetic pole of the deflection angle situation of magnet 5 and magnet 5, operator can observe distribution situation and the magnetic direction in magnetic field, when operator is by after the power supply transposing direction of binding post 2, straight wire 3 obtains the electric current of opposite direction, straight wire 3 is due to electromagnetic induction phenomenon, it around starts to produce and rightabout magnetic field before, magnet 5 starts deflection to the direction with contrary before.
Claims (3)
1. the apparatus for demonstrating for electromotion straight wire surrounding magnetic field test, comprise casing (1), binding post (2), straight wire (3), chute (4), magnet (5), it is characterized in that, binding post (2), straight wire (3), chute (4) is all arranged at casing (1) upper surface, described straight wire (3), be arranged at described casing (1) upper surface centre position, its two ends arrange respectively binding post (2), described binding post (2), it is connected with described straight wire (3) two ends respectively, described straight wire (3), its both sides are uniformly distributed respectively some chutes (4), described chute (4), in it, be provided with some magnet (5).
2. a kind of apparatus for demonstrating for electromotion straight wire surrounding magnetic field test according to claim 1, is characterized in that, described magnet (5), and it is specially bipolar magnet.
3. a kind of apparatus for demonstrating for electromotion straight wire surrounding magnetic field test according to claim 1, it is characterized in that, described magnet (5), its structure is specially, one side is provided with connecting rod, and connecting rod one end is connected with magnet (5) one sides, the other end coordinates in the chute (4) described in being installed on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320569620.8U CN203433721U (en) | 2013-09-13 | 2013-09-13 | Demonstration apparatus for testing of surrounding magnetic field of electrified straight wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320569620.8U CN203433721U (en) | 2013-09-13 | 2013-09-13 | Demonstration apparatus for testing of surrounding magnetic field of electrified straight wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203433721U true CN203433721U (en) | 2014-02-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320569620.8U Expired - Fee Related CN203433721U (en) | 2013-09-13 | 2013-09-13 | Demonstration apparatus for testing of surrounding magnetic field of electrified straight wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203433721U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113409663A (en) * | 2021-07-01 | 2021-09-17 | 方昶朔 | Omnibearing magnetic field display device |
-
2013
- 2013-09-13 CN CN201320569620.8U patent/CN203433721U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113409663A (en) * | 2021-07-01 | 2021-09-17 | 方昶朔 | Omnibearing magnetic field display device |
| CN113409663B (en) * | 2021-07-01 | 2023-02-07 | 方昶朔 | Omnibearing magnetic field display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140212 Termination date: 20140913 |
|
| EXPY | Termination of patent right or utility model |