CN205003936U - Visual demonstration appearance of lenz law - Google Patents
Visual demonstration appearance of lenz law Download PDFInfo
- Publication number
- CN205003936U CN205003936U CN201520789951.1U CN201520789951U CN205003936U CN 205003936 U CN205003936 U CN 205003936U CN 201520789951 U CN201520789951 U CN 201520789951U CN 205003936 U CN205003936 U CN 205003936U
- Authority
- CN
- China
- Prior art keywords
- visible light
- solenoid
- controller
- electric current
- coil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Measuring Magnetic Variables (AREA)
Abstract
The utility model provides a visual demonstration appearance of lenz law, but including solenoid, coil sight, first terminal, controller, second terminal, sensitive ammeter, bar magnet, the utility model has the advantages of when the magnetic pole moved in the spire bobbin, the student just understood experiment phenomena through " but sight ", ability naked eye direct observation to the change of electric current and the big or small orientation of electric current more easily, and lenz law is finally grasped to conclusion experiment law, and " flowing water lamp " expression electric current and electric current are big or small owing to using, the change of orientation, had then increased the nature directly perceived and the interest of experiment, can improve student's learning efficiency greatly.
Description
[technical field]
The utility model relates to a kind of teaching aid of demonstrating electromagnetic induction phenomenon, particularly relates to a kind of Lenz law visual presentation instrument.
[background technology]
In high school physics textbook, the teaching of " electromagnetic induction ", is emphasis and difficult point, and the many experiments in knowledge point are many.Especially Lenz law experiment, pass through four Experimental Researchs, analytic induction, just finally reaches a conclusion.Due in experimentation, the change student of electric current and direction of current cannot see and can not touch, and teacher can only be listened to lecture, and understand with the imagination, can not form perceptual knowledge, therefore, knowledge will be digested by student, very difficult.
[utility model content]
The purpose of this utility model is to solve in high school physics textbook, the teaching of " electromagnetic induction ", the many experiments in knowledge point are many, especially distracted law experiment, four Experimental Researchs will be passed through, analytic induction, just finally reach a conclusion, due in experimentation, the change student of electric current and direction of current cannot see and can not touch, teacher can only be listened to lecture, understand with the imagination, can not perceptual knowledge be formed, therefore, knowledge will be digested by student, very difficult deficiency and a kind of novel Lenz law visual presentation instrument provided.
The utility model is achieved through the following technical solutions: a kind of Lenz law visual presentation instrument, comprise solenoid, coil, visible light, first binding post, controller, second binding post, sensitive reometer, bar-shaped magnet, described solenoid is outer around coil and visible light, controller is provided with in described solenoid, described solenoid is provided with two the first binding posts, described sensitive reometer is provided with two the second binding posts, described two the first binding posts are connected with two the second binding posts on described sensitive reometer respectively by visible light, described bar-shaped magnet can insert and extract in described solenoidal cylinder freely, described coil two ends are connected with described controller, described controller is connected with the first binding post on described solenoid.
Further, described visible light comprises electrified wire, running lamp, electrified wire is provided with in described visible light, running lamp is provided with above described visible light, described controller is connected with the running lamp above described visible light by the first binding post on described solenoid, and described coil two ends are connected with the electrified wire in described visible light.
Further, described solenoid shape is cylindrical shape.
When the N pole of bar-shaped magnet and S pole are inserted respectively and extracted in solenoidal cylinder, when being changed by solenoidal magnetic flux, coil on solenoid can produce induction electromotive force and induction current, induction current is by the wire on visible light, the pointer of sensitive reometer is swung, induction current passes through controller, controller sends instruction according to the faradic size and Orientation change received, the running lamp on the visible light outside solenoid and on solenoid is made to flow by different directions, thus analog current, naked eyes just have seen electric current and size of current, the change in direction, the pointer observing sensitive reometer is coordinated to swing, student just expertly can apply Ampere's law to understand Lenz law, utilize Lenz law and Ampere's law to the motion conditions of the change or magnetic pole of determining inductive current direction.
The beneficial effects of the utility model are: when magnetic pole moves in solenoid bobbin, student is by " visible light ", can direct visual perception to the change in the electric current on coil and size of current direction, just compare easy understand experimental phenomena, conclude experiment law, finally grasp Lenz law, owing to representing the change in electric current and size of current, direction with " running lamp ", then add intuitive and the interest of experiment, greatly can improve the learning efficiency of student.
[accompanying drawing explanation]
Fig. 1 is the utility model Lenz law visual presentation instrument structural representation;
Reference numeral: 1, solenoid; 2, coil; 3, visible light; 31, electrified wire; 32, running lamp; 4, the first binding post; 5, controller; 6, the second binding post; 7, sensitive reometer; 8, bar-shaped magnet.
[embodiment]
Below in conjunction with the drawings and the specific embodiments, the utility model is described further:
Embodiment 1
As shown in Figure 1, a kind of Lenz law visual presentation instrument, comprise solenoid 1, coil 2, visible light 3, first binding post 4, controller 5, second binding post 6, sensitive reometer 7, bar-shaped magnet 8, described solenoid 1 is outer around coil 2 and visible light 3, controller 5 is provided with in described solenoid 1, described solenoid 1 is provided with two the first binding posts 4, described sensitive reometer 7 is provided with two the second binding posts 6, described two the first binding posts 4 are connected with two the second binding posts 6 on described sensitive reometer 7 respectively by visible light 3, described bar-shaped magnet 8 can insert and extract in described solenoid 1 freely, described coil 2 two ends are connected with described controller 5, described controller 5 is connected with the first binding post on described solenoid 1.
Preferably, described visible light 3 comprises electrified wire 31, running lamp 32, electrified wire 31 is provided with in described visible light 3, running lamp 32 is provided with above described visible light 3, described controller 5 is connected with the running lamp 32 above described visible light 3 by the first binding post 4 on described solenoid 1, and described coil 2 two ends are connected with the electrified wire 31 in described visible light 3.
Preferably, described solenoid 1 shape is cylindrical shape.
When the N pole of bar-shaped magnet and S pole are inserted respectively and extracted in the cylinder of solenoid 1, when being changed by the magnetic flux of solenoid 1, coil 2 on solenoid 1 can produce induction electromotive force and induction current, induction current is by the wire 31 on visible light 3, the pointer of sensitive reometer 7 is swung, induction current is by controller 5, controller 5 sends instruction according to the faradic size and Orientation change received, the running lamp 32 on the visible light 3 outside solenoid 1 and on solenoid 1 is made to flow by different directions, thus analog current, naked eyes just have seen electric current and size of current, the change in direction, the pointer observing sensitive reometer 7 is coordinated to swing, student just expertly can apply Ampere's law to understand Lenz law, utilize Lenz law and Ampere's law to the motion conditions of the change or magnetic pole of determining inductive current direction.
The announcement of book and instruction according to the above description, the utility model those skilled in the art can also carry out suitable change and amendment to above-mentioned embodiment.Therefore, the utility model is not limited to embodiment disclosed and described above, also should fall in the protection domain of claim of the present utility model modifications and changes more of the present utility model.In addition, although employ some specific terms in this instructions, these terms just for convenience of description, do not form any restriction to the utility model.
Claims (3)
1. a Lenz law visual presentation instrument, it is characterized in that: comprise solenoid, coil, visible light, first binding post, controller, second binding post, sensitive reometer, bar-shaped magnet, described solenoid is outer around coil and visible light, controller is provided with in described solenoid, described solenoid is provided with two the first binding posts, described sensitive reometer is provided with two the second binding posts, described two the first binding posts are connected with two the second binding posts on described sensitive reometer respectively by visible light, described bar-shaped magnet can insert freely and extract in described solenoid, described coil two ends are connected with described controller, described controller is connected with the first binding post on described solenoid.
2. Lenz law visual presentation instrument according to claim 1, it is characterized in that: described visible light comprises electrified wire, running lamp, electrified wire is provided with in described visible light, running lamp is provided with above described visible light, described controller is connected with the running lamp above described visible light by two the first binding posts on described solenoid, and described coil two ends are connected with the electrified wire in described visible light.
3. Lenz law visual presentation instrument according to claim 1, is characterized in that: described solenoid shape is cylindrical shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520789951.1U CN205003936U (en) | 2015-10-02 | 2015-10-02 | Visual demonstration appearance of lenz law |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520789951.1U CN205003936U (en) | 2015-10-02 | 2015-10-02 | Visual demonstration appearance of lenz law |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205003936U true CN205003936U (en) | 2016-01-27 |
Family
ID=55160814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520789951.1U Expired - Fee Related CN205003936U (en) | 2015-10-02 | 2015-10-02 | Visual demonstration appearance of lenz law |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205003936U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105608970A (en) * | 2016-03-15 | 2016-05-25 | 河南师范大学 | Multifunctional Lenz law demonstration apparatus |
| CN106023746A (en) * | 2015-10-02 | 2016-10-12 | 刘绍家 | Visual demonstration instrument for Lenz's law |
| CN112090188A (en) * | 2020-08-25 | 2020-12-18 | 颜娟 | Wind-force air cleaning device based on lenz's law |
-
2015
- 2015-10-02 CN CN201520789951.1U patent/CN205003936U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106023746A (en) * | 2015-10-02 | 2016-10-12 | 刘绍家 | Visual demonstration instrument for Lenz's law |
| CN105608970A (en) * | 2016-03-15 | 2016-05-25 | 河南师范大学 | Multifunctional Lenz law demonstration apparatus |
| CN105608970B (en) * | 2016-03-15 | 2023-04-25 | 河南师范大学 | Multifunctional Lenz law demonstration device |
| CN112090188A (en) * | 2020-08-25 | 2020-12-18 | 颜娟 | Wind-force air cleaning device based on lenz's law |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106023746A (en) | Visual demonstration instrument for Lenz's law | |
| CN205003936U (en) | Visual demonstration appearance of lenz law | |
| CN206058708U (en) | A kind of physical electromagnetic senses teaching and experimental demonstration device | |
| CN204288627U (en) | DC electromotor principle demonstrator | |
| CN208548081U (en) | It is a kind of for demonstrating the magnetomotive train device of magneticaction | |
| CN205003927U (en) | Teaching experiment device of demonstration electricity generation principle | |
| CN201084300Y (en) | A device for demonstrating electromagnetic induction | |
| CN203455990U (en) | A current magnetic field demonstrator | |
| CN201946188U (en) | Demonstration device for electromagnetic gun teaching | |
| CN203288140U (en) | High voltage control magnetic-suspension teaching demonstrator | |
| CN205899899U (en) | Electromagnetic induction demonstration device | |
| CN205487044U (en) | Lenz law lecture experiment appearance | |
| CN204990941U (en) | Two quick -witted integrative teaching demonstration model in motor and generator | |
| CN204833857U (en) | Self inductance presentation device | |
| CN2888566Y (en) | Lenz's Law testing apparatus | |
| CN208655107U (en) | A kind of simple teaching aid of the raw electrical phenomena of demonstration magnetic | |
| CN204990918U (en) | But electric magnetic phenomena's of sight demonstration instruments used for education | |
| CN203055279U (en) | Lenz law demonstration instrument | |
| CN208655109U (en) | A kind of motor demonstrator | |
| CN209199432U (en) | A kind of experimental provision for demonstrating Lenz's law by U-shaped magnet | |
| CN206672482U (en) | A kind of interactive device of demonstrating current magnetic effect | |
| CN206210219U (en) | Ampere force demonstrator | |
| CN204808708U (en) | Electromagnetic induction tests appearance | |
| CN201667157U (en) | Induction current demonstration device | |
| CN204143720U (en) | The stress demonstrating teaching aid of electrical conductor in magnetic field |
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: 20160127 Termination date: 20201002 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |