CN206757981U - A kind of electromagnetic induction testing stand - Google Patents
A kind of electromagnetic induction testing stand Download PDFInfo
- Publication number
- CN206757981U CN206757981U CN201720277430.7U CN201720277430U CN206757981U CN 206757981 U CN206757981 U CN 206757981U CN 201720277430 U CN201720277430 U CN 201720277430U CN 206757981 U CN206757981 U CN 206757981U
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- switch
- testing stand
- magnetic induction
- support
- permanent magnet
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Abstract
It the utility model is related to electromagnetic induction testing stand, including testing stand body and support, magnetic induction loop is provided with support, the driving wheel being connected via motor is provided with one angle of support, in being respectively provided with an expansion tightening wheel on support the other three angle, in being arranged with the flexible pull wire through magnetic induction loop on driving wheel and three expansion tightening wheels, at least one first permanent magnet is provided with flexible pull wire, in being additionally provided with the body of rod through magnetic induction loop on support, it can be defined in being arranged with the body of rod in the second permanent magnet slided on the body of rod, the second permanent magnet via spacer pin on the body of rod；Slide rheostat, first switch, bulb and the ammeter connected successively with magnetic induction loop are provided with testing stand body, in being additionally provided with the second switch in parallel with first switch and battery pack on testing stand body, when first switch is closed, second switch is opened, carry out inductance experiment, when first switch is opened, second switch is closed, electromagnetic experiment is carried out.The utility model is simple in construction, easy to operate.
Description
Technical field
Physical test technical field is the utility model is related to, more particularly to a kind of electromagnetic induction testing stand.
Background technology
In teaching of senior high school, Faraday's electromagnetic induction law is always the difficult point imparted knowledge to students, and traditional method is to use one piece
Or two blocks of horsehoe magnets are kept flat, then simulation solid conductor is stopped up with multiturn coil, do the magnetic line of force fortune of cutting horsehoe magnet
It is dynamic, because equipment is simple, observing effect unobvious, and electromagnetic induction teaching is rested in the imagination to theory, student
The implication of theory can not intuitively be understood, and make test effect not good enough, and the student interests of student can not be excited well, and dropped
Low quality of instruction.
The content of the invention
In view of this, the utility model is directed to a kind of electromagnetic induction testing stand, and structure letter is answered, easy to operate, can
Clearly demonstration electromagnetism and inductance experiment, and preferably motivate students' interest in learning.
To reach above-mentioned purpose, what the technical solution of the utility model was realized in：
A kind of electromagnetic induction testing stand, including testing stand body, in addition to the branch being vertical on the testing stand body
Frame, magnetic induction loop is provided with the support, the driving wheel being connected via motor is provided with described one angle of support, in
An expansion tightening wheel is respectively provided with the support the other three angle, is arranged with the driving wheel and three expansion tightening wheels through the magnetic
Feel the flexible pull wire of coil, be provided with least one first permanent magnet in the flexible pull wire, worn in being additionally provided with the support
The body of rod of the magnetic induction loop is crossed, in being arranged with the second permanent magnet that can be slided on the body of rod on the body of rod, described
Two permanent magnets are defined on the body of rod via spacer pin；In the testing stand body be provided with successively with the magnetic induction loop string
Slide rheostat, first switch, bulb and the ammeter of connection, in being additionally provided with the testing stand body with the first switch simultaneously
The second switch and battery pack of connection；
When the first switch is closed, second switch is opened, the magnetic induction loop, slide rheostat, bulb and electric current
Closed-loop path is formed between table, starting the motor makes the flexible pull wire be driven and the first permanent magnet is passed through the magnetic induction line
Circle, caused electromotive force make bulb light, and complete inductance experiment；When the first switch is opened, second switch is closed, institute
State and form closed-loop path between magnetic induction loop, slide rheostat, battery pack, bulb and ammeter, close the motor and pull up institute
State spacer pin, second permanent magnet be powered in spiral winding caused by magnetic fields low suspension above magnetic induction loop, it is and complete
Into electromagnetic experiment.
As restriction, first permanent magnet is six be spaced in the flexible pull wire, six the first permanent magnets
Circulate through the magnetic induction loop successively under the drive of the flexible pull wire.
As restriction, elastic washer is provided with the post.
Relative to prior art, the utility model has the advantage that：
（1）A kind of electromagnetic induction testing stand of the present utility model, sets by setting magnetic induction loop, and on testing stand body
Have the slide rheostat connected successively with magnetic induction loop, first switch, bulb and ammeter, in be additionally provided with testing stand body with
First switch second switch in parallel and battery pack, and when first switch is closed, second switch is opened, magnetic induction loop, slip
Closed-loop path is formed between rheostat, bulb and ammeter, starting motor makes flexible pull wire be driven and the first permanent magnet is passed through magnetic
Feel coil, caused electromotive force makes bulb light, and completes inductance experiment；When first switch is opened, second switch is closed, magnetic
Closed-loop path is formed between sense coil, slide rheostat, battery pack, bulb and ammeter, motor is closed and pulls up spacer pin, second
Permanent magnet be powered in spiral winding caused by magnetic fields low suspension above magnetic induction loop, and complete electromagnetic experiment, this practicality
New structure letter is answered, easy to operate, can clearly demonstrate electromagnetism and inductance experiment, and preferably excites the study of student emerging
Interest；
（2）First permanent magnet is is spaced six be located in flexible pull wire, and six the first permanent magnets are in flexible pull wire
Magnetic induction loop is circulated through under drive successively, and produces and continues electromotive force, continues bulb fluorescent lifetime, makes test effect brighter
It is aobvious；
（3）The setting of elastic washer, damage when can avoid the second permanent magnet from falling.
Brief description of the drawings
Form a part of accompanying drawing of the present utility model to be used for providing further understanding to of the present utility model, this practicality is new
The schematic description and description of type is used to explain the utility model, does not form to improper restriction of the present utility model.
In accompanying drawing：
Fig. 1 is a kind of assembling schematic diagram of electromagnetic induction testing stand described in the utility model embodiment；
Fig. 2 is partial enlarged drawing at Fig. 1 A；
Fig. 3 is a kind of circuit diagram of electromagnetic induction testing stand described in the utility model embodiment.
Description of reference numerals：
1- testing stand bodies, 11- slide rheostats, 12- first switches, 13- bulbs, 14- ammeters, 15- second switches,
16- battery packs, 2- supports, 21- magnetic induction loops, 22- motors, 23- driving wheels, 24- expansion tightening wheels, 25- flexible pull wires, 26- first
Permanent magnet, the 27- bodies of rod, 28- spacer pins, the permanent magnets of 29- second, 210- elastic washers.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the utility model can
To be mutually combined.
Describe the utility model in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
A kind of electromagnetic induction testing stand is the utility model is related to, as shown in Fig. 1 combinations Fig. 2, its overall structure includes experiment
Playscript with stage directions body 1 and support 2, specifically, testing stand body 1 is set in rectangular-shape, set respectively at four angles of testing stand body 1
There is supporting leg, support 2 is vertical on testing stand body 1, and in the present embodiment, support 2 is provided with magnetic induction loop 21, specifically, magnetic
Sense coil 21 is arranged at the middle part of the side of support 2, driving wheel 23 is provided with 2 one angles of support, in the other three angle of support 2
On be respectively provided with an expansion tightening wheel 24, driving wheel 23 drives via the motor 22 on support 2 and rotated, in institute's driving wheel 23 and three
The flexible pull wire 25 through magnetic induction loop 21 is arranged with expansion tightening wheel 24, driving wheel 23 rotates and drives flexible pull wire 25 to be driven,
Certainly, flexible pull wire 25 or belt, now, driving wheel 23 be belt pulley, in the present embodiment, in elastic drawstring provided with extremely
Few first permanent magnet 26, in the present embodiment, in being additionally provided with the bar through magnetic induction loop 21 on support 2 and testing stand body 1
Body 27, in being arranged with the second permanent magnet 29 that can be slided on the body of rod 27 on the body of rod 27, the tip position of the body of rod 27 is provided with jack, in
Spacer pin 28 is inserted with jack, the second permanent magnet 29 is defined on the body of rod 27 via spacer pin 28, in the present embodiment, in experiment
Playscript with stage directions body 1 is provided with slide rheostat 11, first switch 12, bulb 13 and the ammeter 14 connected successively with magnetic induction loop 21,
In being additionally provided with the second switch 15 in parallel with first switch 12 and battery pack 16 on testing stand body 1, in the present embodiment, expansion tightening wheel
24 is identical with the structure of expansion tightening wheel 24 in the prior art, will not be repeated here, in the present embodiment, slide rheostat 11, ammeter 14
It is identical with slide rheostat of the prior art, current meter structure principle respectively, it will not be repeated here.
As shown in Fig. 1 combinations Fig. 2, the operating process in the present embodiment is when closing first switch 12, to open second switch
When 15, closed-loop path is formed between magnetic induction loop 21, slide rheostat 11, bulb 13 and ammeter 14, starting motor 22 makes elasticity
Bracing wire 25 is driven and the first permanent magnet 26 is passed through magnetic induction loop 21, and caused electromotive force makes bulb 13 luminous, and completes inductance
Experiment；When opening first switch 12, closing second switch 15, magnetic induction loop 21, slide rheostat 11, battery pack 16, bulb
Closed-loop path is formed between 13 and ammeter 14, motor 22 is closed and pulls up spacer pin 28, the second permanent magnet 29 leads in spiral winding
Magnetic fields low suspension is above magnetic induction loop 21 caused by electricity, and completes electromagnetic experiment.
In the present embodiment, for ease of being operated to motor 22, the control of the controllable keying of motor 22 is provided with testing stand body 1
System switch, meanwhile, to make inductance test test effect more preferably, the first permanent magnet 26 is six of interval in flexible pull wire 25
Individual, six the first permanent magnets 26 circulate through magnetic induction loop 21 successively under the drive of flexible pull wire 25, in the present embodiment, to keep away
Exempt from damage when the second permanent magnet 29 is fallen, elastic washer 210 is provided with the bottom of the body of rod 27, specifically, elastic washer 210 is rubber
Cushion rubber.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc., the utility model should be included in
Protection domain within.
Claims (3)
1. a kind of electromagnetic induction testing stand, including testing stand body, it is characterised in that：Also include being vertical at the experiment playscript with stage directions
Support on body, magnetic induction loop is provided with the support, is provided with described one angle of support via motor drive connection
Driving wheel, in being respectively provided with an expansion tightening wheel on the support the other three angle, it is arranged with the driving wheel and three expansion tightening wheels
Through the flexible pull wire of the magnetic induction loop, at least one first permanent magnet is provided with the flexible pull wire, in the support
On be additionally provided with the body of rod through the magnetic induction loop, in being arranged with the second permanent magnetism that can be slided on the body of rod on the body of rod
Iron, second permanent magnet are defined on the body of rod via spacer pin；In the testing stand body be provided with successively with it is described
Magnetic induction loop series connection slide rheostat, first switch, bulb and ammeter, in be additionally provided with the testing stand body with it is described
First switch second switch in parallel and battery pack；
When the first switch is closed, second switch is opened, between the magnetic induction loop, slide rheostat, bulb and ammeter
Closed-loop path is formed, starting the motor makes the flexible pull wire be driven and the first permanent magnet is passed through the magnetic induction loop, produces
Raw electromotive force makes bulb light, and completes inductance experiment；When the first switch is opened, second switch is closed, the magnetic
Closed-loop path is formed between sense coil, slide rheostat, battery pack, bulb and ammeter, the motor is closed and pulls up the limit
Position pin, second permanent magnet spiral winding be powered caused by magnetic fields low suspension above magnetic induction loop, and complete electricity
Magnetic is tested.
A kind of 2. electromagnetic induction testing stand according to claim 1, it is characterised in that：First permanent magnet sets for interval
In six in the flexible pull wire, six the first permanent magnets circulate through the magnetic successively under the drive of the flexible pull wire
Feel coil.
A kind of 3. electromagnetic induction testing stand according to claim 1, it is characterised in that：Elasticity is provided with the post
Packing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720277430.7U CN206757981U (en) | 2017-03-21 | 2017-03-21 | A kind of electromagnetic induction testing stand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720277430.7U CN206757981U (en) | 2017-03-21 | 2017-03-21 | A kind of electromagnetic induction testing stand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206757981U true CN206757981U (en) | 2017-12-15 |
Family
ID=60610779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720277430.7U Expired - Fee Related CN206757981U (en) | 2017-03-21 | 2017-03-21 | A kind of electromagnetic induction testing stand |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206757981U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109383851A (en) * | 2018-09-25 | 2019-02-26 | 董田田 | Electromagnetic force relaxation formula ultra quiet platform |
-
2017
- 2017-03-21 CN CN201720277430.7U patent/CN206757981U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109383851A (en) * | 2018-09-25 | 2019-02-26 | 董田田 | Electromagnetic force relaxation formula ultra quiet platform |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20171215 Termination date: 20180321 |