CN110189598A - A kind of incline device for verifying Lenz's law - Google Patents
A kind of incline device for verifying Lenz's law Download PDFInfo
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- CN110189598A CN110189598A CN201910484377.1A CN201910484377A CN110189598A CN 110189598 A CN110189598 A CN 110189598A CN 201910484377 A CN201910484377 A CN 201910484377A CN 110189598 A CN110189598 A CN 110189598A
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- Prior art keywords
- plate
- coasting
- flight phase
- lenz
- verifying
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/18—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism
- G09B23/181—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for electric and magnetic fields; for voltages; for currents
Abstract
The present invention relates to a kind of incline devices for verifying Lenz's law.The incline device of the verifying Lenz's law includes support frame, guide plate and magnetic pulley arrangement, the guide plate includes the tilting section and coasting-flight phase being mutually linked, metallic region is provided on the coasting-flight phase, the magnetic part that the magnetism pulley arrangement includes sliding wheel and is set on the sliding wheel, the sliding wheel is rollably supported on the tilting section, the magnetism pulley arrangement is used to slide along the tilting section to the coasting-flight phase, and the coasting-flight phase using the metallic region generates induced magnetic field to hinder the magnetic pulley arrangement to continue to slide.The incline device of the verifying Lenz's law is intuitive and facilitates teaching.
Description
Technical field
The present invention relates to a kind of incline devices for verifying Lenz's law.
Background technique
Lenz's law (Lenz's law) is the law of an electromagnetism, can be used to judge to be generated by electromagnetic induction
The direction of electromotive force.In Lenz's law, induced current has such direction, i.e., faradic magnetic field always hinders to cause to feel
Answer the variation of the magnetic flux of electric current.Lenz's law can also state are as follows: faradic effect always revolt cause it is faradic
Reason.In electron and electrician teaching, it is often necessary to lecture Lenz's law to student, however not there is intuitive material object to test at present
Card is to assist student to understand, so that teaching is less intuitive.
Summary of the invention
Based on this, it is necessary to provide a kind of incline device of more intuitive verifying Lenz's law.
A kind of incline device for verifying Lenz's law, including support frame, guide plate and magnetic pulley arrangement, the guide plate
Including the tilting section and coasting-flight phase being mutually linked, metallic region is provided on the coasting-flight phase, the magnetism pulley arrangement includes
Sliding wheel and the magnetic part being set on the sliding wheel, the sliding wheel are rollably supported on the tilting section, the magnetic
Property pulley arrangement for sliding along the tilting section to the coasting-flight phase, the coasting-flight phase generates sense using the metallic region
Magnetic field is answered to hinder the magnetic pulley arrangement to continue to slide.
In a wherein embodiment, the tilting section relative level is obliquely installed, the coasting-flight phase relative level
Face is arranged in parallel, and the height and position of the tilting section is higher than the height and position of the coasting-flight phase.
In a wherein embodiment, the metallic region is plane domain, and the metallic region is partly or completely
Cover the coasting-flight phase.
In a wherein embodiment, support frame as described above includes bottom plate and is set to the bottom plate two to the first of two sides
Support plate and the second support plate, the opposite end of the guide plate are connected to first support plate and second support
On plate.
In a wherein embodiment, the height of first support plate is less than the height of second support plate, institute
The end for stating coasting-flight phase is supported in first support plate, and the end of the tilting section is supported in the height of second support plate
Degree.
It further include the first metal side plate and the second metal side plate, first metal side in a wherein embodiment
Plate is rotatably arranged in the side of the coasting-flight phase, and second metal side plate is rotatably arranged in the another of the coasting-flight phase
Side, first metal side plate and second metal side plate are used to the relatively described coasting-flight phase overturning and position, to utilize induction
Magnetism pulley arrangement described in field drives changes line of travel.
It further include metal top plate in a wherein embodiment, the metal top plate is rotatably mounted to described second
Edge of the metal side plate far from the coasting-flight phase, side of the metal top plate far from second metal side plate is for overlapping simultaneously
It is supported in the top edge of first metal side plate, so that the metal top plate is set to the coasting-flight phase in parallel relatively
Top, the metal top plate are arch sheet or C-shaped plate.
In a wherein embodiment, the number of the sliding wheel be it is multiple, the magnetism pulley arrangement further includes receiving
Hold frame, the multiple sliding wheel is set to the bottom of the receiving frame, and the magnetic part is installed in the receiving frame.
In a wherein embodiment, the magnetism pulley arrangement includes charging carriage, and the charging carriage is by described
Multiple sliding wheels and the receiving frame are constituted.
It further include being arranged side by side to compare plate and the second ratio in first on support frame as described above in a wherein embodiment
Compared with plate, described first compare the shape of plate and described second compared with plate shape it is identical as the shape of the guide plate, it is described
First to compare plate plate compared with described second include coasting-flight phase, and described first compares the coasting-flight phase of plate by non-metallic material system
At being formed with shiny surface thereon, the described second coasting-flight phase for comparing plate is made of non-metallic material, and it is coarse to be provided with towel
Face.
The incline device of the verifying Lenz's law when in use, using the magnetic pulley arrangement from the tilting section
It slides to the coasting-flight phase, under normal circumstances, the potential energy of the magnetism pulley arrangement is converted into kinetic energy, can continue to slide
Row relatively long distance.And in the incline device of the verifying Lenz's law, the magnetism pulley arrangement slides into the coasting-flight phase
When upper, the metallic region on the coasting-flight phase can cut the magnetic induction line of the magnetic part and generate vortex, the metallic region
The reverse magnetic field that vortex generates hinders the magnetic pulley arrangement to continue to slide, so that the magnetism pulley arrangement slides
Relatively short distance, that is, stop motion.Due to can obviously observe the magnetic pulley arrangement in the rapid stopping of the metallic region
State, then more can intuitively observe Lenz's law phenomenon, facilitate teaching.
Detailed description of the invention
Fig. 1 is the stereoscopic schematic diagram of the incline device of the verifying Lenz's law of an embodiment.
Fig. 2 is the stereoscopic schematic diagram at another visual angle of the incline device of verifying Lenz's law shown in Fig. 1.
Fig. 3 is the stereoscopic schematic diagram of the magnetic pulley arrangement of an embodiment.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give better embodiment of the invention.But the invention can be realized in many different forms, however it is not limited to herein
Described embodiment.On the contrary, the purpose of providing these embodiments is that making to understand more the disclosure
Add thorough and comprehensive.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement for illustrative purposes only, are not meant to be the only embodiment.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term used herein is intended merely to the mesh of description specific embodiment
, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more relevant listed items
Any and all combinations.
The present invention relates to a kind of incline devices for verifying Lenz's law.For example, the incline device of the verifying Lenz's law
Including support frame, guide plate and magnetic pulley arrangement.For example, the guide plate includes the tilting section and coasting-flight phase being mutually linked,
Metallic region, the magnetic that the magnetism pulley arrangement includes sliding wheel and is set on the sliding wheel are provided on the coasting-flight phase
Property part.For example, the sliding wheel is rollably supported on the tilting section, the magnetism pulley arrangement is used for along the tilting section
It slides to the coasting-flight phase, the coasting-flight phase generates induced magnetic field using the metallic region to hinder the magnetism to slide group
Part continues to slide.
It please refers to Fig.1 to Fig.3, a kind of incline device for verifying Lenz's law, including support frame 20, guide plate 30 and magnetism
Pulley arrangement 40, the guide plate 30 include the tilting section 33 and coasting-flight phase 35 being mutually linked, and are provided on the coasting-flight phase 35
Metallic region 355, the magnetism pulley arrangement 40 include sliding wheel 41 and the magnetic part 42 being set on the sliding wheel 41, institute
It states sliding wheel 41 to be rollably supported on the tilting section 33, the magnetism pulley arrangement 40 along the tilting section 33 for sliding
On to the coasting-flight phase 35, the coasting-flight phase 35 generates induced magnetic field using the metallic region 355 to hinder the magnetism sliding
Row component 40 continues to slide.
The incline device of the verifying Lenz's law when in use, using the magnetic pulley arrangement 40 from the tilting section
It is slided on 33 to the coasting-flight phase 35, under normal circumstances, the potential energy of the magnetism pulley arrangement 40 is converted into kinetic energy, energy
Enough continue to slide relatively long distance.And in the incline device of the verifying Lenz's law, the magnetism pulley arrangement 40 slides into
When on the coasting-flight phase 35, the metallic region 355 on the coasting-flight phase 35 can cut the magnetic induction line of the magnetic part 42 and generate
Vortex, the reverse magnetic field that the vortex of the metallic region 355 generates hinder the magnetic pulley arrangement 40 to continue to slide, thus
So that the magnetism pulley arrangement 40 slides relatively short distance i.e. stop motion.Due to can obviously observe that the magnetism slides group
Part 40 then more can intuitively observe Lenz's law phenomenon in the state of the metallic region 355 stopped rapidly, side
Just it imparts knowledge to students.
For example, for the ease of changing the speed of the stopping speed of the magnetic pulley arrangement 40, the tilting section 33 is opposite
Horizontal plane is obliquely installed, and 35 relative level of coasting-flight phase is arranged in parallel, and the height and position of the tilting section 33 is higher than described
The height and position of coasting-flight phase 35.The metallic region 355 is plane domain, and the metallic region 355 partly or completely covers
The coasting-flight phase 35.When the coasting-flight phase 35 is completely covered in the metallic region 355, the magnetism pulley arrangement 40 stops
Faster, i.e., one then changes rapidly the speed of operation into described its speed of service of coasting-flight phase 35.And work as the metallic region
When 355 parts cover the coasting-flight phase 35, then it can observe that the magnetic pulley arrangement 40 is only entering the metallic region
Apparent retardance sense is just generated when 355, improves observation effect.
For example, for the ease of installing the guide plate 30, support frame as described above 20 includes bottom plate 21 and is set to the bottom plate
The first support plate 22 and the second support plate 23 of 21 two pairs of two sides, the opposite end of the guide plate 30 are connected to described
In one support plate 22 and second support plate 23.The height of first support plate 22 is less than the height of second support plate 23
Degree, the end of the coasting-flight phase 35 is supported in first support plate 22, and the end of the tilting section 33 is supported in described the
The height of two support plates 23.By the way that first support plate 22 and second support plate 23 is arranged, can more conveniently incite somebody to action
The guide plate 30 is obliquely installed on support frame as described above 20, facilitates smoothly sliding for the magnetic pulley arrangement 40.
For example, for the ease of the change magnetic pulley arrangement 40 in the line of travel on the coasting-flight phase 35, it is described to test
The incline device for demonstrate,proving Lenz's law further includes the first metal side plate 51 and the second metal side plate 52,51 turns of first metal side plate
It is set to the side of the coasting-flight phase 35 dynamicly, second metal side plate 52 is rotatably arranged in the another of the coasting-flight phase 35
Side, first metal side plate 51 is used to the relatively described overturning of coasting-flight phase 35 with second metal side plate 52 and positions, with benefit
Change line of travel with the induced magnetic field driving magnetic pulley arrangement 40.It is described verifying Lenz's law incline device further include
Metal top plate 53, the metal top plate 53 are rotatably mounted to side of second metal side plate 52 far from the coasting-flight phase 35
Edge, side of the metal top plate 53 far from second metal side plate 52 is for overlapping and being supported in first metal side plate
51 top edge, so that the metal top plate 53 is set to the top of the coasting-flight phase 35 in parallel relatively.For example, the gold
Belonging to top plate 53 is arch sheet or C-shaped plate, i.e. its cross section is C-shaped.
For example, in one embodiment, first metal side plate 51 and second metal side plate 52 pass through hinge knot
Structure is connected to the opposite sides of the coasting-flight phase 35, the hinge arrangement for position first metal side plate 51 or
Second metal side plate 52 is to different angles, for example, keeping first metal side plate 51 vertical with the coasting-flight phase 35.Example
Such as, first metal side plate 51, second metal side plate 52 and the metal top plate 53 are copper sheet or aluminium sheet.
By the way that first metal side plate 51 and second metal side plate 52 is arranged, first metal side can be overturn
Plate 51 and second metal side plate 52, to force the magnetic pulley arrangement 40 towards far from institute using the opposing magnetic field of generation
It states the first metal side plate 51 or is slided towards the direction far from second metal side plate 52.And when the metal top plate 53 is set in parallel
When being placed in 35 top of coasting-flight phase, then it can increase the magnetic pulley arrangement using the magnetic field that the metal top plate 53 generates
40, in the press force slided on end, improve resistance, and the magnetic pulley arrangement 40 is stopped at faster speed
Only run.
For example, smoothly sliding for the ease of the magnetic pulley arrangement 40, the number of the sliding wheel 41 is multiple, institute
Stating magnetic pulley arrangement 40 further includes receiving frame 44, and the multiple sliding wheel 41 is set to the bottom of the receiving frame 44, described
Magnetic part 42 is installed in the receiving frame 44.The magnetism pulley arrangement 40 includes charging carriage 45, the charging carriage 45
It is made of the multiple sliding wheel 41 and the receiving frame 44.By the way that charging carriage 45 is arranged, so that the magnetism pulley arrangement
40 can more swimmingly slide the tilting section 33, and rush to the coasting-flight phase 35 with fast speed.
For example, the incline device of the verifying Lenz's law further includes being arranged side by side in the support for the ease of comparison
First on frame 20 compares plate 28 compared with second of plate 25, and described first compares the shape of plate 25 plate 28 compared with described second
Shape is identical as the shape of the guide plate 30, described first compare plate 25 compared with described second plate 28 include coasting-flight phase
35, the described first coasting-flight phase 35 for comparing plate 25 is made of non-metallic material, is formed with shiny surface 255, second ratio thereon
Coasting-flight phase 35 compared with plate 28 is made of non-metallic material, is provided with towel rough surface 288.For example, described first compares plate
25 compared with described second plate 28 with the guide plate 30 be arranged side by side, described first compares the plate compared with described second of plate 25
28 also include tilting section 33.Compare plate 25 and described second compare plate 28 and be made of non-metallic material due to described first,
Therefore reversed vortex will not being generated thereon, will not generating opposing magnetic field, magnetic the sliding for pulley arrangement 40 will not be produced
Raw any influence.It, can be in first ratio when the magnetic pulley arrangement 40 is when described first compares and slide on plate 25
Compared with more successfully sliding relatively long distance on the coasting-flight phase 35 of plate 25.And when the magnetic pulley arrangement 40 compares in described second
When sliding on plate 28, relatively short distance is slided on the coasting-flight phase 35 that plate 28 can be compared described second.
For example, in one embodiment, the guide plate 30 is made of nonmetallic materials, the metallic region 355 is covered in
The surface of the coasting-flight phase 35, the metallic region 355 includes the copper sheet of multistage rotation connection, by overturning the multistage copper sheet
The length of the metallic region 355 can be changed, so that the length of the metallic region 355 can relatively rapid change
Become, improves teaching efficiency.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Only several embodiments of the present invention are expressed for embodiment described above, and the description thereof is more specific and detailed, but
It cannot be construed as a limitation to the scope of the present invention.It should be pointed out that for the ordinary skill people of this field
For member, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to of the invention
Protection scope.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of incline device for verifying Lenz's law, which is characterized in that including support frame, guide plate and magnetic pulley arrangement,
The guide plate includes the tilting section and coasting-flight phase being mutually linked, and metallic region is provided on the coasting-flight phase, described magnetic sliding
Row component includes sliding wheel and the magnetic part that is set on the sliding wheel, and the sliding wheel is rollably supported in the tilting section
On, the magnetism pulley arrangement is used to slide along the tilting section to the coasting-flight phase, and the coasting-flight phase utilizes the metal
Region generates induced magnetic field to hinder the magnetic pulley arrangement to continue to slide.
2. the incline device of verifying Lenz's law according to claim 1, which is characterized in that the tilting section relative level
Face is obliquely installed, and the coasting-flight phase relative level is arranged in parallel, and the height and position of the tilting section is higher than the coasting-flight phase
Height and position.
3. the incline device of verifying Lenz's law according to claim 1, which is characterized in that the metallic region is plane
Region, the metallic region partly or completely cover the coasting-flight phase.
4. the incline device of verifying Lenz's law according to claim 1, which is characterized in that support frame as described above includes bottom plate
The first support plate and the second support plate, the opposite end of the guide plate of two sides are separately connected with the bottom plate two is set to
In in first support plate and second support plate.
5. the incline device of verifying Lenz's law according to claim 4, which is characterized in that the height of first support plate
Degree is less than the height of second support plate, and the end of the coasting-flight phase is supported in first support plate, the tilting section
End be supported in the height of second support plate.
6. the incline device of verifying Lenz's law according to claim 1, which is characterized in that further include the first metal side plate
With the second metal side plate, first metal side plate is rotatably arranged in the side of the coasting-flight phase, second metal side plate
It is rotatably arranged in the other side of the coasting-flight phase, first metal side plate and second metal side plate are used to opposite institute
Coasting-flight phase overturning positioning is stated, to drive the magnetic pulley arrangement to change line of travel using induced magnetic field.
7. the incline device of verifying Lenz's law according to claim 6, which is characterized in that it further include metal top plate, institute
It states metal top plate and is rotatably mounted to the edge of second metal side plate far from the coasting-flight phase, the metal top plate is far from institute
The side for stating the second metal side plate is used to overlap and be supported in the top edge of first metal side plate, so that the metal roof
Plate is set to the top of the coasting-flight phase in parallel relatively, and the metal top plate is arch sheet or C-shaped plate.
8. the incline device of verifying Lenz's law according to claim 1, which is characterized in that the number of the sliding wheel is
Multiple, the magnetism pulley arrangement further includes receiving frame, and the multiple sliding wheel is set to the bottom of the receiving frame, the magnetic
Property part is installed in the receiving frame.
9. the incline device of verifying Lenz's law according to claim 8, which is characterized in that the magnetism pulley arrangement packet
Charging carriage is included, the charging carriage is made of the multiple sliding wheel and the receiving frame.
10. it is according to claim 1 verifying Lenz's law incline device, which is characterized in that further include be arranged side by side in
First on support frame as described above compares plate plate compared with second, and described first compares the shape of shape plate compared with described second of plate
Shape is identical as the shape of the guide plate, and described first to compare plate plate compared with described second include coasting-flight phase, and described
One coasting-flight phase for comparing plate is made of non-metallic material, is formed with shiny surface thereon, and described second compares the coasting-flight phase of plate by non-
Metal material is made, and is provided with towel rough surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910484377.1A CN110189598A (en) | 2019-06-05 | 2019-06-05 | A kind of incline device for verifying Lenz's law |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910484377.1A CN110189598A (en) | 2019-06-05 | 2019-06-05 | A kind of incline device for verifying Lenz's law |
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| Publication Number | Publication Date |
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| CN110189598A true CN110189598A (en) | 2019-08-30 |
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ID=67720419
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910484377.1A Pending CN110189598A (en) | 2019-06-05 | 2019-06-05 | A kind of incline device for verifying Lenz's law |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110956883A (en) * | 2019-12-27 | 2020-04-03 | 北京工业大学 | Magnet wall type electromagnetic induction demonstration instrument |
-
2019
- 2019-06-05 CN CN201910484377.1A patent/CN110189598A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110956883A (en) * | 2019-12-27 | 2020-04-03 | 北京工业大学 | Magnet wall type electromagnetic induction demonstration instrument |
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