CN205959494U - Lenz's law demonstrating instrument - Google Patents
Lenz's law demonstrating instrument Download PDFInfo
- Publication number
- CN205959494U CN205959494U CN201620429734.6U CN201620429734U CN205959494U CN 205959494 U CN205959494 U CN 205959494U CN 201620429734 U CN201620429734 U CN 201620429734U CN 205959494 U CN205959494 U CN 205959494U
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- CN
- China
- Prior art keywords
- main body
- body frame
- coil
- luminotron
- law
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- 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
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Abstract
The utility model discloses a lenz's law demonstrating instrument includes main body frame, and main body frame is both ends open -ended body, is equipped with the multiunit coil on main body frame's the inner wall, and all coils set gradually along main body frame extending direction, and every group coil coils many casts by a constantan wire, the red luminotron and the green luminotron that all are equipped with on every group coil and connect, the anodal negative pole with green luminotron of red luminotron link together and the one end of constantan wire is connected, and the negative pole of red luminotron and the positive pole of green luminotron link together and the other end of constantan wire is connected, main body frame's both ends are equipped with block structure, are equipped with magnet in the main body frame. The utility model has the advantages of: can demonstrate out with lenz law the most directly perceivedly to because of there not being outer power supply interference, make the phenomenon that lenz law aroused objective accurate more.
Description
Technical field
This utility model is related to a kind of instruments used for education, specifically a kind of len's law demonstration instrument, belongs to instruments used for education
Field.
Background technology
Propose Lenz's law early in Lenz in 1883, that is, the change passing through the magnetic flux of coil will produce electric current.Many
Well known, Lenz's law needs practical proof, the real grasp of ability.Therefore in order to learn Lenz's law, occur in that much stupefied
The technology of secondary law demonstration instrument.But there are shortcomings in current technology.For example：Existing Lenz's law instrument is present in
Theory stage, specifically not in kind.And existing Lenz's law instrument uses additional power supply, but fixed according to Lenz
For rule, the Magnet amount change of coil need to occur under conditions of passive, can verify that magnetic flux change produces the former of electric current
Reason.In addition existing len's law demonstration instrument device, it can only verify whether to produce electric current by the change of ammeter pointer,
It is not able to verify that magnetic direction changes, to the impact producing the sense of current.
Content of the invention
In order to solve the above problems, this utility model provides a kind of len's law demonstration instrument, and this demonstrator can will be taken out
The Lenz's law of elephant, is intuitively shown by the diode of different colours, allows uninteresting theory study become easy, and
This utility model is easy to carry because of small volume.
The technical solution of the utility model is：
Len's law demonstration instrument includes main body frame, and described main body frame is the body of both ends open, described main body frame
Inwall be provided with multigroup coil, all described coils set gradually along the bearing of trend of described main body frame, and every group of institute
State coil to be formed by a constantan wire coiling multi-turn；The red luminotron being equipped with coil described in every group and connecing and green are sent out
Light pipe, one end that the negative pole of the positive pole of described red luminotron and described green luminotron links together with described constantan wire
Connect, the positive pole of the negative pole of described red luminotron and described green luminotron links together another with described constantan wire
End connects；The two ends of described main body frame are provided with plugging structure, are provided with Magnet in described main body frame, and described Magnet is in described line
The centre of circle reciprocatingly moves.
Further, described Magnet includes five pieces of rare-earth magnets being combined together.
Further, described constantan wire coiling 500 circle of coil described in every group.
Further, described main body frame selects lucite tube.
Further, a diameter of 5cm of described lucite tube, length is 45cm.
Further, it is provided with coil described in 25 groups in described lucite tube.
Because how a lot of abecedarians change for faradic direction when learning Lenz's law, it is assorted
So change is smudgy.By the most direct demonstration instrument for physical phenomenon of this utility model, by the essential intuition of physical phenomenon
Show.Help abecedarian to deepen the impression and help understand.
The utility model has the advantage of：
Len's law demonstration instrument of the present utility model, by movement in the middle of main body frame for the Magnet, to change body frame
The magnetic flux on coil on the body of frame, thus Magnet enters into away the magnetic flux change of the coil for same position not
With.And the change of magnetic flux leads to, red luminotron and green luminotron that the constantan wire two ends of coil connect, in different feelings
Bright order under condition is different.Len's law demonstration instrument especially of the present utility model is not using additional power source, so that magnetic field
Change do not disturbed by power supply, make the demonstration of Lenz's law more accurate.
The utility model is described in further detail with reference to the accompanying drawings and examples.
Brief description
Fig. 1 is the structural representation of this utility model len's law demonstration instrument；
Fig. 2 is the mplifying structure schematic diagram of one group of coil in embodiment；
In figure：The plastic tube of 1 support coil, 2 coils, 3 constantan wires, 4 red light emitting diodes, 5 greens
Light emitting diode, 6 lucite tubes, 7 Magnet.
Specific embodiment
Hereinafter preferred embodiment of the present utility model is illustrated it will be appreciated that preferred embodiment described herein
It is merely to illustrate and explains this utility model, be not used to limit this utility model.
As depicted in figs. 1 and 2, a kind of len's law demonstration instrument includes main body frame, and main body frame is the pipe of both ends open
Body, the main body frame of the present embodiment selects lucite tube 6, and selects a diameter of 5cm, and length is the lucite tube of 45cm
6.
It is provided with multigroup coil 2, all coils 2 set gradually along the bearing of trend of main body frame, every group in main body frame
Coil 2 coils multi-turn by a constantan wire 3 and is formed, and every group of coil 2 of the present embodiment includes the plastic tube of a support coil
1, on the plastic tube 1 of this support coil, coiling 500 circle constantan wire 3 forms coil 2.The redness being equipped with and connecing on every group of coil 2
Light emitting diode 4 and green LED 5, the negative pole of the positive pole of red light emitting diodes 4 and green LED 5 connects
Go to be connected with one end of constantan wire 3, the positive pole of the negative pole of red light emitting diodes 4 and green LED 5 connects together
Go to be connected with the other end of constantan wire 3 together；It is provided with 25 groups of coils 2 in the lucite tube 6 of the present embodiment.
The two ends of main body frame are provided with plugging structure, are provided with Magnet 7 in main body frame, and Magnet 7 is reciprocal in the centre of coil
Mobile, go to change the magnetic flux of coil；The Magnet 7 of the present embodiment includes five pieces of rare-earth magnets being combined together.
When Magnet 7 is when moving to the other end from one end of lucite tube 6, it makes the line on lucite tube 6 side wall
Magnetic flux in circle 2 there occurs change.According to Lenz's law, coil 2 can produce electric current to stop the change of magnetic flux.When dilute
When native Magnet N level moves downward, red light emitting diodes 4 are first bright, and then green LED 5 is bright again.Rare-earth magnet S level to
During lower motion, green LED 5 is first bright, bright after red light emitting diodes 4 are first bright.By red light emitting diodes 4 and green
The bright order of color light emitting diode 5, correspond to the sense of current producing on coil 2, so that Lenz's law is intuitively demonstrated
Out.
In sum, len's law demonstration instrument therefore of the present utility model, allows abecedarian when using this utility model, leads to
Cross demonstration easily to grasp, how faradic direction changes, why so change is smudgy.By this reality
With new the most direct demonstration instrument for physical phenomenon, the essential intuition of physical phenomenon is showed.Abecedarian is helped to deepen print
As understanding with help.And because this utility model is not disturbed using external power, make the phenomenon caused by Lenz's law more objective
Accurately.And it is easy to carry.
Claims (6)
1. len's law demonstration instrument it is characterised in that：Including main body frame, described main body frame is the body of both ends open, institute
The inwall stating main body frame is provided with multigroup coil, and all described coils set successively along the bearing of trend of described main body frame
Put, and coil described in every group coils multi-turn by a constantan wire and formed；The redness being equipped with coil described in every group and connecing is sent out
Light pipe and green luminotron, the negative pole of the positive pole of described red luminotron and described green luminotron link together with described
One end of constantan wire connects, the positive pole of the negative pole of described red luminotron and described green luminotron link together with described
The other end of constantan wire connects；The two ends of described main body frame are provided with plugging structure, are provided with Magnet in described main body frame, described
Magnet reciprocatingly moves in the centre of described coil.
2. len's law demonstration instrument according to claim 1 it is characterised in that：Described Magnet includes five being combined together
Block rare-earth magnet.
3. len's law demonstration instrument according to claim 1 it is characterised in that：The described constantan wire tray of coil described in every group
Around 500 circles.
4. the len's law demonstration instrument according to any one of claims 1 to 3 it is characterised in that：Described main body frame is selected
Lucite tube.
5. len's law demonstration instrument according to claim 4 it is characterised in that：A diameter of 5cm of described lucite tube,
Length is 45cm.
6. len's law demonstration instrument according to claim 4 it is characterised in that：It is provided with 25 in described lucite tube
Organize described coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620429734.6U CN205959494U (en) | 2016-05-12 | 2016-05-12 | Lenz's law demonstrating instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620429734.6U CN205959494U (en) | 2016-05-12 | 2016-05-12 | Lenz's law demonstrating instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205959494U true CN205959494U (en) | 2017-02-15 |
Family
ID=57967020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620429734.6U Expired - Fee Related CN205959494U (en) | 2016-05-12 | 2016-05-12 | Lenz's law demonstrating instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205959494U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105761591A (en) * | 2016-05-12 | 2016-07-13 | 冯鹏 | Lenz law demonstration instrument |
| CN107358849A (en) * | 2017-08-21 | 2017-11-17 | 西华师范大学 | Lenz's law, Faraday's electromagnetic induction law analytical demonstrator |
-
2016
- 2016-05-12 CN CN201620429734.6U patent/CN205959494U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105761591A (en) * | 2016-05-12 | 2016-07-13 | 冯鹏 | Lenz law demonstration instrument |
| CN107358849A (en) * | 2017-08-21 | 2017-11-17 | 西华师范大学 | Lenz's law, Faraday's electromagnetic induction law analytical demonstrator |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170215 Termination date: 20190512 |