CN108447362A - A kind of physics education magnetic induction demonstrating experiment device - Google Patents
A kind of physics education magnetic induction demonstrating experiment device Download PDFInfo
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- CN108447362A CN108447362A CN201810286173.2A CN201810286173A CN108447362A CN 108447362 A CN108447362 A CN 108447362A CN 201810286173 A CN201810286173 A CN 201810286173A CN 108447362 A CN108447362 A CN 108447362A
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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
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Abstract
The invention belongs to physics teaching demonstration technical field of experiment equipment, and in particular to a kind of experimental provision that electromagnetic induction phenomenon is demonstrated in physics teaching, including demonstrate rack and be set to the electromagnetic induction mechanism demonstrated in rack；The electromagnetic induction mechanism includes permanent magnet, is set to below the permanent magnet demonstration channel, the induction coil and pilot bulb for being set around the demonstration channel outer surface；One end of the permanent magnet is flexibly connected with shown demonstration rack, and the both ends of the induction coil are equipped with binding post, and the pilot bulb is connect by conducting wire with the binding post.The present invention passes through contrast experiment, student is enable to clearly realize that the relationship of the size of Lenz's law, the right-hand rule and size of current and power, the dynamic role of student's study can be effectively improved, the initiative that training student is pondered a problem and solved the problems, such as improves learning efficiency.
Description
Technical field
The invention belongs to physics teaching demonstration technical field of experiment equipment, and in particular to one kind is in physics teaching to electromagnetism
The experimental provision that induction is demonstrated.
Background technology
With magnetic chapters and sections, syllabus requires students magnetic direction, is powered and leads electricity in junior middle school, high school physics subject
The dialectical relationship of the Impact direction and three of current direction and electrical conductor in magnetic field in body.It is related to the general of direction
It reads, if by teaching demonstration instruments, if imparting knowledge to students only according to language or gesture, student is not often not easy to grasp.Existing teaching
Demonstration instrument generates magnetic field using horsehoe magnet, until keeping electrical conductor track of movement under force in magnetic field too short, and is easy to become
Shape, phenomenon unobvious.In addition, the change of current direction can only be pointed out by teacher, and changes current direction and to go to change by teacher
Power positive cathode is connect to realize.Therefore, it imparts knowledge to students by existing teaching demonstration instruments time-consuming and laborious, cannot excite that student's is emerging
Interest, effect of giving lessons are poor.
Chinese utility model patent, publication number CN 206541513U disclose left hand rule and electromagnetic induction demonstration device, packet
Permanent magnet is included, closed circuit is demonstrated by the left hand rule that DC power supply, track and the movable conductor that is placed in magnetic field are constituted, and
The electromagnetic induction demonstration closed circuit being made of sensitive galvanometer and the inductance coil being placed in magnetic field；The left hand rule demonstration
Current direction indicator light is additionally provided in closed circuit, the track and movable conductor are first contacted, then referred to together with current direction
Show lamp parallel connection.
Although by the explanation of the displaying of this instruments used for education, demonstration and teacher, student can be allowed to grasp magnetic field side securely
To the dialectical relationship of Impact direction and three of the current direction and electrical conductor in, electrical conductor in magnetic field.It can be
Learning interest of the student to experiment is improved to a certain extent so that student can recognize and grasp left hand rule to a certain extent
And electromagnetic induction principle.
But one side needs to make inductance coil remove cutting magnetic induction line manually, also needs to take a substantial amount of time,
On the other hand, an inductance coil cutting magnetic induction line is only set, control group is not provided with so that student is difficult to clean off understanding electricity
Feel difference of the coil in cutting magnetic induction line and not cutting magnetic induction line；Also, it needs teacher to take inductance coil to cut magnetic with hand
Feel line, cannot make student understands to recognize in inductance coil cutting magnetic induction line, the stressing conditions of inductance coil.
Invention content
The object of the present invention is to provide one kind capable of saving time of experiment teaching content, can add control group experiment, make student
When more clearly recognizing electromagnetic induction principle, and can understand demonstration coil cutting magnetic induction line, the stress of coil or magnet
Situation can understand the physics teaching experimental device for demonstrating Lenz's law.
To achieve the above object of the invention, the embodiment of the present invention uses following technical solution：
A kind of physics education magnetic induction demonstrating experiment device, including demonstrate rack and be set in the demonstration rack
Electromagnetic induction mechanism；The electromagnetic induction mechanism includes permanent magnet, is set to below the permanent magnet demonstration channel, winding
Induction coil and pilot bulb in the demonstration channel outer surface；One end of the permanent magnet and shown demonstration rack activity
The both ends of connection, the induction coil are equipped with binding post, and the pilot bulb is connect by conducting wire with the binding post.
In a kind of optional embodiment of the present invention, the demonstration rack includes demonstrating pedestal and supporting mechanism, described
Supporting mechanism includes the first support element and the second support element, and second support element is set to the top of first support element,
The section of second support element is L-shaped, and one end of second support element is connect with the top of first support element, described
The other end of second support element is equipped with the first cavity, is equipped with electromagnetic core in first cavity, the electromagnetic core is being powered
When generate magnetic force, the permanent magnet is flexibly connected by the electromagnetic core with second support element.
In another optional embodiment of the present invention, the demonstration channel is set to the top of the demonstration pedestal, institute
It includes the first demonstration channel and the second demonstration channel to state demonstration channel, and the first demonstration channel and second demonstration channel are flat
Row setting, the supporting mechanism and the permanent magnet are correspondingly provided with two, and described two permanent magnets are located at described first
The top in channel and second demonstration channel is demonstrated, the cross-sectional area in the demonstration channel is more than the cross section of the permanent magnet
Product so that the permanent magnet can move in the demonstration channel；The induction coil setting is in first demonstration channel
Outside, between the pilot bulb and the induction coil be equipped with first switch.
The demonstration channel is equipped with buffer gear close to one end of the demonstration pedestal, and the buffer gear includes fixing
Block, be set to the fixed block one end rotating member, with the rotating member rotation connection bolster, the one of the bolster
End is equipped with junction button, and the side wall in the demonstration channel is equipped with fixing buckle, and the junction button matches with the fixing buckle.
The bottom in the demonstration channel is equipped with electronic balance, and the electronic balance is located at the lower section of the buffer gear, and
There are gaps between the lower surface of the fixed block；The upper surface of the demonstration pedestal is equipped with the groove to lower recess, described
The first clamping item is equipped in groove, the outer surface in the demonstration channel is equipped with match with the first clamping item second
It is clamped item, the electronic balance is arranged in the groove.
The side wall in the demonstration channel is equipped with sliding notch, and sliding support, the sliding branch are equipped in the sliding notch
Several correlation type photoelectric sensors are vertically equipped on frame, the correlation type photoelectric sensor includes luminous component and receipts light
Component, the sliding support are located at the top of the buffer gear.
The electromagnetic induction experiment device further includes power supply, current regulator, PLC controller and display, the electric current
Adjuster is connect with the induction coil by conducting wire, is opened equipped with second between the current regulator and the induction coil
It closes, the power supply is electrically connected with the PLC controller, the current regulator and the display respectively, the power supply and institute
It states electromagnet to connect by conducting wire, and is equipped with third between the power supply and the electromagnet and switchs.
The PLC controls are connect with the correlation type photoelectric sensor electric signal, the display and the PLC controller
Electric signal connects；The electronic balance is connect with the display electric signal.
The upper surface of the demonstration pedestal is equipped with horizontal ball, and the lower surface of the demonstration pedestal is equipped with Level tune part, institute
It includes fixing piece and movable part to state Level tune part, and the movable part is rotatablely connected with fixing piece, the side of first cavity
Equipped with cover board.
The present invention is after adopting the above technical scheme, compared with prior art, achieve following advantageous effects：
The present invention is provided with contrast groups and tests first, is fallen simultaneously by two permanent magnets, one of permanent magnet is by line
Circle cutting, another permanent magnet are not cut by coil, can effectively compare motion state of the permanent magnet in coil, are effectively helped
Understanding of the student for Lenz's law is deepened to refuse the understanding of going or staying；And can also indirect verification law of conservation of energy, deepen learn
The understanding of the raw knowledge between subject mutually digested；Then permanent magnet is placed on by the present invention by the way that electronic balance is arranged
On electronic balance, it is passed through electric current in coil, passes through the variation of the number of degrees of electronic balance, work of the verification electrical conductor to permanent magnet
Firmly the case where, and it is also provided with current regulator in the present invention, by reconciling the size of electric current, it is able to verify that electric current is big
The situation of change of the small size to permanent magnet active force so that student have higher study content management, improve student study and
It ponders a problem, problem-solving ability.
Description of the drawings
Fig. 1 is a kind of overall structure diagram of physics education magnetic induction demonstrating experiment device of the present invention；
Fig. 2 is a kind of configuration schematic diagram of physics education magnetic induction demonstrating experiment device of the present invention；
Fig. 3 is the partial enlargement structural representation at A in Fig. 2 of the present invention；
Fig. 4 is a kind of detonation configuration signal at another visual angle of physics education magnetic induction demonstrating experiment device of the present invention
Figure；
Fig. 5 is the partial enlargement structural representation at B in Fig. 4 of the present invention；
Fig. 6 is the circuit connection diagram of each electric component of the present invention；
In figure：10- demonstrate rack, 100- demonstration pedestal, 101- grooves, 1011- first be clamped item, 102- horizontal balls,
103- Level tunes part, 1030- fixing pieces, 1031- movable parts, 110- supporting mechanisms, the first support elements of 111-, 112- second
Support member, the first cavitys of 1120-, 1121- electromagnet, 1122- cover boards, 20- electromagnetic induction mechanisms, 200- permanent magnets, 210- demonstrations
Channel, 2101- second are clamped item, 2102- slides notch, 2103- sliding supports, 211- first demonstrate channel, 212- second is drilled
Show that channel, 220- induction coils, 221- binding posts, 230- pilot bulbs, 231- first switches, 30- buffer gears, 300- are fixed
Block, 310- rotating members, 320- bolsters, 321- junction buttons, 322- fixing buckles, 40- electronic balances, 500- correlation type photoelectric sensings
Device, 501- luminous components, 502- light absorbing parts part, 600- power supplys, 6001- thirds switch, 601- current regulators, 6011- second
Switch, 602-PLC controllers, 603- displays.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
Example gradually can be arranged and be designed with a variety of different configurations.Therefore, below to the reality of the present invention provided in the accompanying drawings
The detailed description for applying example is not intended to limit the range of claimed invention, but is merely representative of the selected implementation of the present invention
Example.
Embodiment
Description of the invention attached drawing 1- Fig. 3 is please referred to, a kind of object is provided in a kind of optional embodiment of the present invention
Teaching consuming energy magnetic induction demonstrating experiment device is managed, including the electromagnetic induction demonstrated rack 10 and be set in the demonstration rack 10
Mechanism 20；Demonstration channel of the electromagnetic induction mechanism 20 including permanent magnet 200, the lower section for being set to the permanent magnet 200
210, the instruction for being set around the induction coil 220 of demonstration 210 outer surface of channel and being set in the demonstration rack 10
Light bulb 230；One end of the permanent magnet 200 is flexibly connected with shown demonstration rack 10, and the both ends of the induction coil 220 are equipped with
Binding post 221, the pilot bulb 230 are connect by conducting wire with the binding post 221.
In the present embodiment, by permanent magnet 200 and demonstration 10 active link of rack, and in the lower section of permanent magnet 200
The demonstration channel 210 for being arranged with induction coil 220 is set, and the both ends of induction coil 220 and pilot bulb 230 are passed through into conducting wire
Connection, permanent magnet 200 with demonstration rack 10 disconnect when, permanent magnet 200 under the effect of gravity along demonstration channel 210 to
Lower movement, to cutting magnetic induction line, is produced so that induction coil 220 is moved relative to permanent magnet 200 in induction coil 220
Raw induced current so that the pilot bulb 230 being connect with induction coil 220 shines.By pilot bulb 230 it is luminous whether,
Verify the induced current that 220 cutting magnetic induction line of induction coil generates so that student, which can clearly recognize in induction coil 220, is
It is no to have faradic generation.
In another optional embodiment of the present invention, the demonstration rack 10 includes demonstration pedestal 100 and supporting mechanism
110, the supporting mechanism 110 includes the first support element 111 and the second support element 112, and second support element 112 is set to institute
State the top of the first support element 111, the section of second support element 112 is L-shaped, one end of second support element 112 with
The top of first support element 111 connects, and with reference to Fig. 4, the other end of second support element 112 is equipped with the first cavity
1120, first cavity 1120 is interior to be equipped with electromagnetic core 1121, and the electromagnetic core 1121 generates magnetic force when being powered, described
Permanent magnet 200 is flexibly connected by the electromagnetic core 1121 with second support element 112.
In the present embodiment, it is arranged to permanent magnet 200 and the connection type of demonstration rack 10 to pass through electromagnetic core
1121 mode active link so that when electromagnetic core 1121 powers off, permanent magnet 200 can be zero with initial velocity, and only
It falls under the effect of gravity, that is, does the movement of falling object, it, can be more clearly right in the case where there is contrast groups experiment
The motion state for moving in induction coil 220 than permanent magnet 200 and being moved in non-inductive coil 220, it is stupefied so as to verify
Secondary law is deepened, to refusing the understanding of going or staying, or even can qualitatively deepen Understanding memory of the student to law of conservation of energy.
Description of the invention attached drawing 2- Fig. 4 and Fig. 6 are please referred to, it is described in a kind of optional embodiment of the present invention
Demonstration channel 210 is set to the top of the demonstration pedestal 100, and the demonstration channel 210 includes first demonstrating channel 211 and the
Two demonstration channels 212, the first demonstration channel 211 and second demonstration channel 212 are arranged in parallel, the supporting mechanism
110 and the permanent magnet 200 be correspondingly provided with two, described two permanent magnets 200 are located at first demonstration channel 211
It is more than the transversal of the permanent magnet 200 with the cross-sectional area of the top in second demonstration channel 212, the demonstration channel 210
Area so that the permanent magnet 200 being capable of the movement in the demonstration channel 210；The setting of the induction coil 220 is described the
The outside in one demonstration channel 211, is equipped with first switch 231 between the pilot bulb 230 and the induction coil 220.
In the present embodiment, demonstration channel 210 is arranged two, by being arranged in the outside in the first demonstration channel 211
Induction coil 220 is not provided with induction coil 220 in the outside in the second demonstration channel 212, can compare two permanent magnets 200 and exist
When falling, permanent magnet 200 and second demonstrates the whereabouts situation of permanent magnet 200 in channel 212 in the first demonstration channel 211, specifically
The sequencing that the permanent magnet 200 that comparison two is fallen simultaneously is contacted with the bottom in demonstration channel 210, can make student clearly
Lenz's law is appreciated and understood.Simultaneously, additionally it is possible to further deepen understanding of the student to the conservation of energy, the reason is that, in permanent magnetism
In 200 dropping process of body, gravitional force is converted into kinetic energy, and in the first demonstration channel 211, due to the first demonstration channel 211
Outside is provided with induction coil 220, and permanent magnet 200 is in dropping process, 220 cutting magnetic induction line of induction coil, generates induced electricity
The kinetic energy that stream, i.e. permanent magnet 200 move is converted into electric energy, and therefore, the permanent magnet 200 in the first demonstration channel 211 will
It is slower than what the permanent magnet 200 in the second demonstration channel 212 fell.
Description of the invention attached drawing 2- Fig. 5 is please referred to, in a kind of optional embodiment of the present invention, the demonstration channel
One end of the 210 close demonstration pedestal 100 is equipped with buffer gear 30, and the buffer gear 30 includes fixed block 300, setting
Rotating member 310 in one end of the fixed block 300, the bolster 320 with the rotation connection of the rotating member 310, the buffering
One end of part 320 is equipped with junction button 321, and the side wall in the demonstration channel 210 is equipped with fixing buckle 322, the junction button 321 and institute
Fixing buckle 322 is stated to match.
Preferably, the bolster 320 is double-layer structure, when it, which is turned to, is wherein contacted on one side with fixed block 300, with
The one side that fixed block 300 contacts is rigid face, and the one side far from fixed block 300 is flexible face, and rigid face is played a supporting role, soft
Play cushioning effect in property face.
More preferably, the bolster 320 is three-decker, and interlayer, interlayer are additionally provided in the centre of rigid face and flexible face
With certain flexibility, the flexibility of interlayer is less than the flexibility of flexible face.
Description of the invention attached drawing 2, Fig. 4 and Fig. 5 are please referred to, it is described to drill in a kind of optional embodiment of the present invention
Show that the bottom in channel 210 is equipped with electronic balance 40, the electronic balance 40 is located at the lower section of the buffer gear 30, and with it is described
There are gaps between the lower surface of fixed block 300；The upper surface of the demonstration pedestal 100 is equipped with the groove 101 to lower recess, institute
It states and is equipped with the first clamping item 1011 in groove 101, the outer surface in the demonstration channel 210 is equipped with and the first clamping item
1011 the second clamping items 2101 to match, the electronic balance 40 are arranged in the groove 101.
In the present embodiment, can will delay in lecture experiment in the bottom setting electronic balance 40 in demonstration channel 210
Stamping 320 turns to vertical state, and permanent magnet 200 is placed on electronic balance 40 first, is not passed through in induction coil 220
When electric current, it can be seen that the first demonstration channel 211 and second demonstrate the electronic balance 40 in channel 212 read it is identical, it is backward
It is passed through electric current in induction coil 220, observes the reading variation of two electronic balances 40, student is enabled to understand understanding permanent magnet
200 be subject in hot-wire coil power the case where.
In the present embodiment, the current direction in induction coil 220 can also be changed, observe different current directions pair
The action direction of the power of permanent magnet 200, enables to student clearly to recognize the right-hand rule, improves learning efficiency.
Description of the invention attached drawing 2 and Fig. 4 are please referred to, in a kind of optional embodiment of the present invention, the demonstration is logical
The side wall in road 210 is equipped with sliding notch 2102, and sliding support 2103, the sliding support are equipped in the sliding notch 2102
Several correlation type photoelectric sensors 500 are vertically equipped on 2103, the correlation type photoelectric sensor 500 includes illumination region
Part 501 and light absorbing part part 502, the sliding support 2103 are located at the top of the buffer gear 30.
In the present embodiment, by the way that several correlation type photoelectric sensors 500 are arranged, correlation type photoelectric sensor 500
Luminous component 501 can send out red-infrared light, and the light absorbing part part 502 of correlation type photoelectric sensor 500 can receive luminous component
501 red-the infrared lights sent out, when permanent magnet 200 is by demonstrating channel 210, the luminous component of correlation type photoelectric sensor 500
501 red-the infrared lights sent out are blocked by permanent magnet 200 so that light absorbing part part 502 can not receive luminous component 501 and send out
Red-infrared light can so that correlation type photoelectric sensor 500 can measure falling speed and the time of permanent magnet 200
Quantitative analysis is carried out to electromagnetic induction, improves the learning interest of student.
Description of the invention attached drawing 6 is please referred to, in the present embodiment, the electromagnetic induction experiment device further includes power supply
600, current regulator 601, PLC controller 602 and display 603, the current regulator 601 and the induction coil 220
It is connected by conducting wire, second switch 6011, the power supply is equipped between the current regulator 601 and the induction coil 220
600 are electrically connected with the PLC controller 602, the current regulator 601 and the display 603 respectively, the power supply 600
It is connect by conducting wire with the electromagnet 1121, and is equipped with third between the power supply 600 and the electromagnet 1121 and switchs
6001。
In the present embodiment, due to there are two the settings of electromagnet 1121, and in order to ensure that two permanent magnets 200 are same
When fall, therefore third switch 6001 set between two electromagnet 1121 and power supply 600 is provided in two electromagnetism
In connection bus between iron 1121 and power supply 600.
In the present embodiment, current regulator 601 is set, is adjusted to induction coil 220 by current regulator 601
The electric current of input so that the electric current of input induction coil 220 is stepped up, to observe electricity in the electric current being stepped up
The variation that sub- balance 40 is read, can clearly recognize effect of the magnetic field to permanent magnet 200 caused by the size of electric current
The relationship of power.
In the present embodiment, current regulator 601 is equipped with maximum current value, and the maximum current value is root in production
It is set according to the permanent magnet 200 of different quality, which is less than and can make after input current in induction coil 220
Obtain the current value that permanent magnet 200 is zero to the pressure of electronic balance 40.It can be avoided in electric current mistake by the way that maximum current value is arranged
When big, permanent magnet 200 is jumped out out of demonstration channel 210, avoids situation of causing danger.
In the present embodiment, induction coil 220, electronic balance 40,500 inner lead of correlation type photoelectric sensor by
Non-magnet material is made, such as copper wire or aluminum steel etc., and to avoid in the presence of permanent magnet 200, magnetic conduction conducting wire is affected.
PLC control 602 is connect with 500 electric signal of correlation type photoelectric sensor, the display 603 with it is described
602 electric signal of PLC controller connects；The electronic balance 40 is connect with 603 electric signal of the display.
Description of the invention attached drawing 4 and Fig. 5 are please referred to, the upper surface of the demonstration pedestal 100 is equipped with horizontal ball 102, institute
The lower surface for stating demonstration pedestal 100 is equipped with Level tune part 103, and the Level tune part 103 includes fixing piece 1030 and activity
Part 1031, the movable part 1031 are rotatablely connected with fixing piece 1030, and the side of first cavity 1120 is equipped with cover board 1122.
Claims (9)
1. a kind of physics education magnetic induction demonstrating experiment device, which is characterized in that including demonstration rack and be set to described
Demonstrate the electromagnetic induction mechanism in rack；The electromagnetic induction mechanism includes permanent magnet, is set to drilling below the permanent magnet
The induction coil and pilot bulb for showing channel, being set around the demonstration channel outer surface；One end of the permanent magnet with it is shown
Rack flexible connection is demonstrated, the both ends of the induction coil are equipped with binding post, and the pilot bulb passes through conducting wire and the wiring
Column connects.
2. a kind of physics education magnetic induction demonstrating experiment device according to claim 1, which is characterized in that described to drill
Showing that rack includes demonstration pedestal and supporting mechanism, the supporting mechanism includes the first support element and the second support element, and described second
Support element is set to the top of first support element, and the section of second support element is L-shaped, and the one of second support element
End is connect with the top of first support element, and the other end of second support element is equipped with the first cavity, first cavity
Interior to be equipped with electromagnetic core, the electromagnetic core generates magnetic force when being powered, the permanent magnet by the electromagnetic core with it is described
Second support element is flexibly connected.
3. a kind of physics education magnetic induction demonstrating experiment device according to claim 2, which is characterized in that described to drill
Show that channel is set to the top of the demonstration pedestal, the demonstration channel includes the first demonstration channel and the second demonstration channel, institute
It states the first demonstration channel and second demonstration channel to be arranged in parallel, the supporting mechanism and the permanent magnet are correspondingly provided with two
A, described two permanent magnets are located at the top in the first demonstration channel and second demonstration channel, and the demonstration is logical
The cross-sectional area in road is more than the cross-sectional area of the permanent magnet so that the permanent magnet can move in the demonstration channel；
The outside in first demonstration channel is arranged in the induction coil, and the is equipped between the pilot bulb and the induction coil
One switch.
4. a kind of physics education magnetic induction demonstrating experiment device according to claim 2, which is characterized in that described to drill
That shows channel is equipped with buffer gear close to one end of the demonstration pedestal, and the buffer gear includes fixed block, it is described to be set to
The rotating member of one end of fixed block, the bolster with rotating member rotation connection, one end of the bolster are equipped with junction button,
The side wall in the demonstration channel is equipped with fixing buckle, and the junction button matches with the fixing buckle.
5. a kind of physics education magnetic induction demonstrating experiment device according to claim 4, which is characterized in that described to drill
Show that the bottom in channel is equipped with electronic balance, the electronic balance is located at the lower section of the buffer gear, and with the fixed block
There are gaps between lower surface；The upper surface of the demonstration pedestal is equipped with the groove to lower recess, is equipped in the groove
First clamping item, the outer surface in the demonstration channel are equipped with the second clamping item to match with the first clamping item, the electricity
Sub- balance is arranged in the groove.
6. a kind of physics education magnetic induction demonstrating experiment device according to claim 5, which is characterized in that described to drill
Show that the side wall in channel is equipped with sliding notch, equipped with sliding support in the sliding notch, on the sliding support vertically
Equipped with several correlation type photoelectric sensors, the correlation type photoelectric sensor includes luminous component and light absorbing part part, the sliding
Holder is located at the top of the buffer gear.
7. a kind of physics education magnetic induction demonstrating experiment device according to claim 6, which is characterized in that the electricity
Magnetic induction experimental provision further includes power supply, current regulator, PLC controller and display, the current regulator and the sense
It answers coil to be connected by conducting wire, second switch, the power supply difference is equipped between the current regulator and the induction coil
It is electrically connected with the PLC controller, the current regulator and the display, the power supply passes through conducting wire with the electromagnet
Connection, and be equipped with third between the power supply and the electromagnet and switch.
8. a kind of physics education magnetic induction demonstrating experiment device according to claim 7, which is characterized in that described
PLC controls are connect with the correlation type photoelectric sensor electric signal, and the display is connect with the PLC controller electric signal；
The electronic balance is connect with the display electric signal.
9. according to a kind of physics education magnetic induction demonstrating experiment device of claim 2-8 any one of them, feature exists
In the upper surface of the demonstration pedestal is equipped with horizontal ball, and the lower surface of the demonstration pedestal is equipped with Level tune part, the level
Regulating part includes fixing piece and movable part, and the movable part is rotatablely connected with fixing piece, and the side of first cavity is equipped with lid
Plate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810286173.2A CN108447362A (en) | 2018-04-03 | 2018-04-03 | A kind of physics education magnetic induction demonstrating experiment device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810286173.2A CN108447362A (en) | 2018-04-03 | 2018-04-03 | A kind of physics education magnetic induction demonstrating experiment device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109686204A (en) * | 2019-02-22 | 2019-04-26 | 何晓凌 | A kind of electromagnetic induction tester |
| CN110288885A (en) * | 2019-06-11 | 2019-09-27 | 东南大学 | A kind of experimental method of research nonlinear permanent magnet magnetization rule |
| CN110969921A (en) * | 2020-01-09 | 2020-04-07 | 天津工业大学 | Electromagnetic induction type wireless power transmission system teaching device |
| CN111951647A (en) * | 2020-07-27 | 2020-11-17 | 白茹 | Integral lenz's law demonstration instrument |
| CN114596763A (en) * | 2022-03-16 | 2022-06-07 | 滁州职业技术学院 | Physical teaching experimental device based on electromagnetic induction |
-
2018
- 2018-04-03 CN CN201810286173.2A patent/CN108447362A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109686204A (en) * | 2019-02-22 | 2019-04-26 | 何晓凌 | A kind of electromagnetic induction tester |
| CN110288885A (en) * | 2019-06-11 | 2019-09-27 | 东南大学 | A kind of experimental method of research nonlinear permanent magnet magnetization rule |
| CN110288885B (en) * | 2019-06-11 | 2021-02-09 | 东南大学 | Experimental method for researching magnetization law of nonlinear permanent magnet |
| CN110969921A (en) * | 2020-01-09 | 2020-04-07 | 天津工业大学 | Electromagnetic induction type wireless power transmission system teaching device |
| CN111951647A (en) * | 2020-07-27 | 2020-11-17 | 白茹 | Integral lenz's law demonstration instrument |
| CN114596763A (en) * | 2022-03-16 | 2022-06-07 | 滁州职业技术学院 | Physical teaching experimental device based on electromagnetic induction |
| CN114596763B (en) * | 2022-03-16 | 2023-06-20 | 滁州职业技术学院 | Physical teaching experimental device based on electromagnetic induction |
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Application publication date: 20180824 |