CN205722530U - Multi-functional demonstrator for Lenz law - Google Patents
Multi-functional demonstrator for Lenz law Download PDFInfo
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- CN205722530U CN205722530U CN201620196758.1U CN201620196758U CN205722530U CN 205722530 U CN205722530 U CN 205722530U CN 201620196758 U CN201620196758 U CN 201620196758U CN 205722530 U CN205722530 U CN 205722530U
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- binding post
- electrically connected
- audion
- switch
- metal bar
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Abstract
The utility model discloses multi-functional demonstrator for Lenz law, including horizontal box and be arranged at the vertical casing in the middle part of horizontal box, vertically the side of casing is provided with display, first switch, second switch, first binding post, second binding post, power interface and by the becket of fiber suspension, the horizontal box of homonymy is provided with the first metal bar, this first metal bar is arranged at the side of becket and is wound with first coil on the first metal bar, vertically the opposite side of casing is provided with red LED lamp, green LED lamp, 3rd binding post and the 4th binding post, the horizontal box of homonymy is provided with horizontal rail, the mobile dolly being slidably matched with horizontal rail and the fixing dolly being fixed in horizontal rail.This utility model just can verify the electromagnetic theory law of multiple classics intuitively by shirtsleeve operation, is suitable for exploratory experiment teaching, meets and is advocated raising manipulative ability, observation ability and the teaching idea of ability of analysis in modern education.
Description
Technical field
This utility model belongs to physics teaching demonstration device technique field, is specifically related to a kind of multi-functional len's law demonstration
Device.
Background technology
At present about the lecture experiment of Lenz's law, traditional way is: square coil is the most vertically and horizontally by tool
In having the perpendicular at long straight conductor place of steady current, analyze faradic change in coil；Bar magnet is to logical
Electrical solenoid at the uniform velocity closer or far from during, the change of closed-loop path electric current；The soft iron rod being cased with lightweight aluminium ring inserts spiral shell
In spool, and give solenoid electric current of make-and-break, observe the ruuning situation of lightweight aluminium ring.Above several method is the most dry as dust, no
Student can be allowed to be clearly observed experimental result visual in imagely.
Lenz's law occupies critical role in senior middle school physics teaching, is the core content about electromagnetics teaching.At present,
In relevant teaching classroom, presentation format is the most single, it is impossible to cause the conductor in solenoid by the change of electric current in solenoid
Produce and change contrary magnetic field with it, so that conductor motion；Experimental demonstration can not be effectively utilized to make student image and directly perceived
Observe this experimental phenomena, therefore, it is difficult to adapt to new period quality-oriented education requirement.
Summary of the invention
This utility model solves the technical problem that there is provided a kind of reasonable in design and easy to operate multi-functional Lenz determines
Rule apparatus for demonstrating.
This utility model adopts the following technical scheme that for solving above-mentioned technical problem, multi-functional demonstrator for Lenz law,
It is characterized in that including horizontal box and being arranged at the vertical casing in the middle part of horizontal box, the side of vertical casing is provided with display
Device, the first switch, second switch, the first binding post, the second binding post, power interface and by the becket of fiber suspension, perpendicular
The inside of straight casing is provided with transformator, diode and capacitor, and the horizontal box of homonymy is provided with the first metal bar, this first gold medal
Belong to rod be arranged at the side of becket and on the first metal bar, be wound with first coil, the outfan of first coil and input
Be electrically connected with the first binding post and the second binding post respectively, the first binding post by second switch respectively with capacitor side
The outfan of electrode and transformator side is electrically connected with, and the second binding post is electrically connected with the electrode of capacitor opposite side, transformation
The outfan of device opposite side passes sequentially through the electrode electric connection of the first switch and diode and capacitor opposite side, transformator
Input is electrically connected with power interface, and power interface is electrically connected with civil power, and display is parallel to the both sides of capacitor；Vertically
The opposite side of casing is provided with red LED lamp, green LED lamp, the 3rd binding post and the 4th binding post, and the inside of vertical casing is provided with
First audion, the first power supply, the second audion and second source, the horizontal box of homonymy is provided with horizontal rail and level
The mobile dolly that slide coordinates and the fixing dolly being fixed in horizontal rail, mobile dolly is provided with magnetic stripe, fixing little
Car is provided with the second metal bar, electric supply installation, the 3rd switch, the 5th binding post and the 6th binding post, wherein on the second metal bar
Being wound with the second coil, the outfan of this second coil and input are electrically connected with the 3rd binding post and the 4th binding post respectively
Or being electrically connected with the 5th binding post and the 6th binding post respectively, the B base stage of the 3rd binding post and the first audion electrically connects
Connecing, the C colelctor electrode of the first audion is electrically connected with red LED lamp and the first power cathode successively, and the first positive source is respectively
It is electrically connected with the E emitter stage of the 4th binding post and the first audion, and the 3rd binding post E with the second audion respectively sends out
The positive pole of emitter-base bandgap grading and second source is electrically connected with, and the B base stage of the second audion is electrically connected with the 4th binding post, the second audion
C colelctor electrode be electrically connected with the negative pole of green LED lamp and second source successively, the 5th binding post successively with electric supply installation and the
It is electrically connected with the 6th binding post after three switch series connection.
This utility model just can verify the electromagnetic theory law of multiple classics intuitively by shirtsleeve operation, is suitable for visiting
Study carefully formula experimental teaching, meet and modern education is advocated the teaching reason improving manipulative ability, observation ability and ability of analysis
Read.
Accompanying drawing explanation
Fig. 1 is Facad structure schematic diagram of the present utility model；
Fig. 2 is the circuit connection diagram of this utility model front box house；
Fig. 3 is structure schematic diagram of the present utility model；
Fig. 4 is the circuit connection diagram of this utility model back side box house.
In figure: 1, horizontal box, 2, vertical casing, 3, display, the 4, first switch, 5, second switch, the 6, first wiring
Post, the 7, second binding post, 8, power interface, 9, silk thread, 10, becket, the 11, first metal bar, 12, first coil, 13, red
LED, 14, green LED lamp, the 15, the 3rd binding post, the 16, the 4th binding post, 17, horizontal rail, 18, mobile dolly, 19, solid
Determine dolly, 20, magnetic stripe, the 21, second metal bar, 22, electric supply installation, the 23, the 3rd switch, the 24, the 5th binding post, the 25, the 6th connects
Terminal, the 26, second coil.
Detailed description of the invention
Particular content of the present utility model is described in detail in conjunction with accompanying drawing.Multi-functional demonstrator for Lenz law, including level
Casing 1 and be arranged at the vertical casing 2 in the middle part of horizontal box 1, the side of vertical casing 2 be provided with display 3, first switch 4, the
Two switch 5, first binding post the 6, second binding posts 7, power interface 8 and the becket 10 hung by silk thread 9, vertical casing 2
Inside be provided with transformator, diode and capacitor, the horizontal box 1 of homonymy is provided with the first metal bar 11, this first metal
Rod 11 is arranged at the side of becket 10 and is wound with first coil 12, the outfan of first coil 12 on the first metal bar 11
Be electrically connected with the first binding post 6 and the second binding post 7 respectively with input, the first binding post 6 by second switch 5 respectively with
The electrode of capacitor side and the outfan of transformator side are electrically connected with, the second binding post 7 and the electrode of capacitor opposite side
Being electrically connected with, the outfan of transformator opposite side passes sequentially through the electrode electricity of the first switch 4 and diode and capacitor opposite side
Property connect, the input of transformator and power interface 8 be electrically connected with, and power interface 8 and civil power are electrically connected with, display 3 parallel connection
Both sides in capacitor；Vertically the opposite side of casing 2 is provided with red LED lamp 13, green LED lamp 14, the 3rd binding post 15 and the
Four binding posts 16, the inside of vertical casing 2 is provided with the first audion, the first power supply, the second audion and second source, homonymy
Horizontal box 1 is provided with mobile dolly 18 that horizontal rail 17 is slidably matched with horizontal rail 17 and is fixed on horizontal rail 17
On fixing dolly 19, mobile dolly 18 is provided with magnetic stripe 20, and fixing dolly 19 is provided with the second metal bar 21, electric supply installation
22, the 3rd switch the 23, the 5th binding post 24 and the 6th binding post 25, is wherein wound with the second coil 26 on the second metal bar 21,
The outfan of this second coil 26 and input respectively with the 3rd binding post 15 and the 4th binding post 16 is electrically connected with or respectively
Being electrically connected with the 5th binding post 24 and the 6th binding post 25, the B base stage of the 3rd binding post 15 and the first audion is electrically connected with,
The C colelctor electrode of the first audion is electrically connected with the negative pole of red LED lamp 13 and the first power supply successively, and the first positive source is respectively
Be electrically connected with the E emitter stage of the 4th binding post 16 and the first audion, and the 3rd binding post 15 respectively with the second audion
E emitter stage and the positive pole of second source be electrically connected with, the B base stage of the second audion is electrically connected with the 4th binding post 16, the
The C colelctor electrode of two audions is electrically connected with the negative pole of green LED lamp 14 and second source successively, the 5th binding post 24 successively with
It is electrically connected with the 6th binding post 25 after electric supply installation 22 and the 3rd switch 23 series connection.
Embodiment 1
Outfan and the input of first coil are connected with the first binding post and the second binding post respectively, and by power supply
Interface electrically connects with city, and Guan Bi the first switch charges to capacitor, observes the display registration in parallel with capacitor to no longer becoming
Changing, disconnect the first switch, close second switch, capacitor discharge, the big electric current of the instantaneous generation of first coil, its inside produces magnetic
, the magnetic field in opposite direction with first coil internal magnetic field will be produced by fiber suspension becket on vertical casing, this
Two contrary magnetic fields will produce electromagnetic repulsion force, becket can eject a certain distance, thus verify Lenz's law: sense
The magnetic field of induced current hinders the change causing faradic magnetic flux always, and the magnetic field simultaneously produced by first coil can be tested
Card electricity is to the conversion of magnetic.
Embodiment 2
Outfan and the input of the second coil being connected with the 5th binding post and the 6th binding post respectively, Guan Bi the 3rd is opened
Close, observe the ruuning situation of mobile dolly thus judge the magnetic induction line direction of now the second coil, in conjunction with magnetic stripe on mobile dolly
Pole orientation, verify Ampere's law.Additionally change the second metal bar of unlike material, repeat aforesaid operations, then in conjunction with shifting
The ruuning situation of dynamic dolly probes into the different medium impact on electromagnetic field size.
Embodiment 3
Outfan and the input of the second coil are connected with the 3rd binding post and the 4th binding post respectively, disconnect the 3rd and open
Close, mobile dolly to fixing dolly closer or far from process observation red LED lamp and the luminous situation of green LED lamp, thus
The sense of current in the second coil can be known, i.e. can verify that Lenz's law in conjunction with Ampere's law: faradic magnetic field is always
Hinder the change causing faradic magnetic flux, simultaneously by the second coil producing transient current checking magnetic to the conversion of electricity.
Of the present utility model ultimate principle, principal character and advantage are more than shown and described, new without departing from this practicality
On the premise of type spirit and scope, this utility model also has various changes and modifications, and these changes and improvements both fall within requirement and protect
The scope of the present utility model protected.
Claims (1)
- The most multi-functional demonstrator for Lenz law, it is characterised in that include horizontal box and be arranged in the middle part of horizontal box vertical Casing, the side of vertical casing is provided with display, the first switch, second switch, the first binding post, the second binding post, power supply connect Mouthful and by the becket of fiber suspension, the inside of vertical casing is provided with transformator, diode and capacitor, the filter box of homonymy Body is provided with the first metal bar, and this first metal bar is arranged at the side of becket and is wound with First Line on the first metal bar Enclosing, the outfan of first coil and input are electrically connected with the first binding post and the second binding post respectively, and the first binding post leads to Cross second switch to be electrically connected with the electrode of capacitor side and the outfan of transformator side respectively, the second binding post and electric capacity The electrode of device opposite side is electrically connected with, and the outfan of transformator opposite side passes sequentially through the first switch and diode is another with capacitor The electrode of side is electrically connected with, and the input of transformator is electrically connected with power interface, and power interface is electrically connected with civil power, aobvious Show that device is parallel to the both sides of capacitor；Vertically the opposite side of casing is provided with red LED lamp, green LED lamp, the 3rd binding post and the Four binding posts, the inside of vertical casing is provided with the first audion, the first power supply, the second audion and second source, the water of homonymy Flat casing be provided with mobile dolly that horizontal rail is slidably matched with horizontal rail and be fixed in horizontal rail fixing little Car, mobile dolly is provided with magnetic stripe, fixing dolly be provided with the second metal bar, electric supply installation, the 3rd switch, the 5th binding post and 6th binding post, is wherein wound with the second coil on the second metal bar, and the outfan of this second coil and input are respectively with Three binding posts and the 4th binding post are electrically connected with or are electrically connected with the 5th binding post and the 6th binding post respectively, the 3rd wiring The B base stage of post and the first audion is electrically connected with, and the C colelctor electrode of the first audion is born with red LED lamp and the first power supply successively Pole is electrically connected with, and the first positive source is electrically connected with the E emitter stage of the 4th binding post and the first audion respectively, and the 3rd Binding post positive pole with the E emitter stage of the second audion and second source respectively is electrically connected with, the B base stage of the second audion and the Four binding posts are electrically connected with, and the C colelctor electrode of the second audion is electrically connected with the negative pole of green LED lamp and second source successively, 5th binding post is electrically connected with the 6th binding post after connecting with electric supply installation and the 3rd switch successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620196758.1U CN205722530U (en) | 2016-03-15 | 2016-03-15 | Multi-functional demonstrator for Lenz law |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620196758.1U CN205722530U (en) | 2016-03-15 | 2016-03-15 | Multi-functional demonstrator for Lenz law |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205722530U true CN205722530U (en) | 2016-11-23 |
Family
ID=57313384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620196758.1U Expired - Fee Related CN205722530U (en) | 2016-03-15 | 2016-03-15 | Multi-functional demonstrator for Lenz law |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205722530U (en) |
Cited By (5)
| 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 |
| CN107308616A (en) * | 2017-08-26 | 2017-11-03 | 吴金玉 | A kind of rehabilitation material for tempering hand activities function |
| CN107335177A (en) * | 2017-08-26 | 2017-11-10 | 吴金玉 | A kind of exercise apparatus for training hand function |
| CN107335178A (en) * | 2017-08-26 | 2017-11-10 | 吴金玉 | A kind of device for training hand harmony |
| CN107551485A (en) * | 2017-08-26 | 2018-01-09 | 吴金玉 | A kind of rehabilitation material for training trick coordination |
-
2016
- 2016-03-15 CN CN201620196758.1U patent/CN205722530U/en not_active Expired - Fee Related
Cited By (6)
| 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 |
| CN105608970B (en) * | 2016-03-15 | 2023-04-25 | 河南师范大学 | Multifunctional Lenz law demonstration device |
| CN107308616A (en) * | 2017-08-26 | 2017-11-03 | 吴金玉 | A kind of rehabilitation material for tempering hand activities function |
| CN107335177A (en) * | 2017-08-26 | 2017-11-10 | 吴金玉 | A kind of exercise apparatus for training hand function |
| CN107335178A (en) * | 2017-08-26 | 2017-11-10 | 吴金玉 | A kind of device for training hand harmony |
| CN107551485A (en) * | 2017-08-26 | 2018-01-09 | 吴金玉 | A kind of rehabilitation material for training trick coordination |
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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: 20161123 Termination date: 20170315 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |