CN206489804U - Electromagnet apparatus for demonstrating and electromagnet demonstration instrument - Google Patents
Electromagnet apparatus for demonstrating and electromagnet demonstration instrument Download PDFInfo
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- CN206489804U CN206489804U CN201720127223.3U CN201720127223U CN206489804U CN 206489804 U CN206489804 U CN 206489804U CN 201720127223 U CN201720127223 U CN 201720127223U CN 206489804 U CN206489804 U CN 206489804U
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- electromagnet
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Abstract
The utility model provides a kind of electromagnet apparatus for demonstrating and electromagnet demonstration instrument, it is related to physics and teaches auxiliary performance technology field, electromagnet apparatus for demonstrating includes electromagnet group, figure demonstrating panel, drive circuit and audio process, audio process carries out spectrum analysis to audio file, generate and send audible spectrum information, drive circuit receives audible spectrum information, generate and send solenoid actuated information, electromagnet group starts according to solenoid actuated information, and figure demonstrating panel carries out the display of figure according to the startup rule of electromagnet.Spectrum analysis technique is combined by the technical scheme with H. C. Oersted Experiment principle, the figure shows that audio file starts with electromagnet are matched, alleviate the technical problem that demo function is single, presentation process shortage is interesting of prior art presence, the demo function of physical teaching aid is enriched, the interest of presentation process is enhanced.
Description
Technical field
The utility model is related to physics and teaches auxiliary performance technology field, more particularly, to a kind of electromagnet apparatus for demonstrating and electromagnetism
Iron demonstration instrument.
Background technology
Physics is a subject based on practice, physician practices can help Faculty and Students preferably lecture and
Rational learning related physical knowledge.In actual physician practices teaching, in order to more visually illustrate physical problem, physics religion
Development needs the auxiliary of teaching aid.
At present, physical teaching aid is broadly divided into demonstration mode teaching aid and Practice based teaching aid, and demonstration mode teaching aid is demonstrated with operation of teacher
Based on, with it is vivid the characteristics of, comparatively speaking, based on Practice based teaching aid is put into practice with student, with it is directly perceived the characteristics of.With
Exemplified by H. C. Oersted Experiment demonstration teaching aid, H. C. Oersted Experiment shows：There is magnetic field, i.e. electric current around electrified wire has magnetic effect,
Relation between the H. C. Oersted Experiment sense of current and magnetic pole can then be judged that its demonstration teaching aid includes power supply, small magnetic by Ampere's law
Pin, wire and switch, demonstration teaching aid entirety principle is clear and easy to understand, and visual phenomenon understands.
During the utility model is realized, inventor has found that at least there are the following problems in the prior art：Traditional electricity
Magnetics teaching aid is dry as dust, lacks interesting, illustrative is poor, and the study that teacher is difficult to transfer student by teaching aid is positive
Property, teacher is in order to improve the interest of lecture experiment, with reference to the related teaching aid of field research self-control electromagnetism, and by time, bar
The limitation of the factors such as part, it is difficult to complete lively intuitively teaching aid model, be that the penetration and promotion of teaching aid brings difficulty, because
This, there is the technical problem that demo function is single, presentation process lacks interest in prior art.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of electromagnet apparatus for demonstrating and electromagnet demonstration instrument,
There is the technical problem that demo function is single, presentation process lacks interest to alleviate prior art.
In a first aspect, the utility model embodiment provides a kind of electromagnet apparatus for demonstrating, including electromagnet group, figure are drilled
Show panel, drive circuit and audio process；
The electromagnet group is arranged at the bottom of the figure demonstrating panel, and is connected with the drive circuit；
The drive circuit is also connected with the audio process；
The audio process carries out spectrum analysis to audio file, generates and sends audible spectrum information；
The drive circuit receives the audible spectrum information, generates and sends solenoid actuated information；
The electromagnet group starts according to the solenoid actuated information；
The figure demonstrating panel carries out the display of figure according to the startup rule of electromagnet.
With reference in a first aspect, the utility model embodiment provide first aspect the first possible embodiment, its
In, the electromagnet group includes 64 electromagnet, and the every electromagnet includes iron core and the line being wound in outside the iron core
Circle.
With reference to the first possible embodiment of first aspect, the utility model embodiment provides the of first aspect
Two kinds of possible embodiments, wherein, 64 electromagnet arrangement modes are the rectangular arranged that 8 rows 8 are arranged, and col width and row are high
It is equal.
With reference to second of possible embodiment of first aspect, the utility model embodiment provides the of first aspect
Three kinds of possible embodiments, wherein, the drive circuit includes audible spectrum analysis module and solenoid actuated module；
The output end of the audible spectrum analysis module is connected with the input of the solenoid actuated module；
The audible spectrum analysis module receives and analyzes the audible spectrum information, divides audible spectrum interval；
The solenoid actuated module is interval according to the audible spectrum, generates and sends solenoid actuated information.
With reference in a first aspect, the utility model embodiment provide first aspect the 4th kind of possible embodiment, its
In, the audio process is WD302416 frequency spectrum devices.
With reference in a first aspect, the utility model embodiment provide first aspect the 5th kind of possible embodiment, its
In, in addition to the electric supply installation being connected with the audio process and the drive circuit；
The electric supply installation is output as DC15V.
With reference in a first aspect, the utility model embodiment provide first aspect the 6th kind of possible embodiment, its
In, in addition to the audio player being connected with the audio process；
Audio file described in the audio player plays.
With reference in a first aspect, the utility model embodiment provide first aspect the 7th kind of possible embodiment, its
In, the figure demonstrating panel include the first acrylic dividing plate, the second acrylic dividing plate and be placed in the first acrylic dividing plate with
Metal dust between second acrylic dividing plate.
With reference to the 7th kind of possible embodiment of first aspect, the utility model embodiment provides the of first aspect
Eight kinds of possible embodiments, wherein, the metal dust is iron powder.
Second aspect, the utility model embodiment also provides a kind of electromagnet demonstration instrument, including：Main body cabinet, support
Base and above-mentioned electromagnet apparatus for demonstrating；
The support base is arranged at the bottom of the main body cabinet, and is bolted company with the main body cabinet
Connect；
The electromagnet apparatus for demonstrating is secured by bolts in the inside of the main body cabinet.
The utility model embodiment brings following beneficial effect：Electromagnet apparatus for demonstrating bag provided by the utility model
Electromagnet group, figure demonstrating panel, drive circuit and audio process are included, electromagnet group is arranged at the bottom of figure demonstrating panel
Portion, and be connected with drive circuit, drive circuit is also connected with audio process, and audio process carries out frequency spectrum to audio file
Analysis, generates and sends audible spectrum information, and drive circuit receives audible spectrum information, generates and sends solenoid actuated letter
Breath, electromagnet group starts according to solenoid actuated information, and figure demonstrating panel carries out figure according to the startup rule of electromagnet
Display.The technical scheme is combined by using spectrum analysis technique with H. C. Oersted Experiment principle, by audio file and electromagnet
The figure shows of startup match, and the response time of figure demonstrating switching is short, and its broadcasting synchronization extent with audio file is high, rich
The rich demo function of physical teaching aid, enhances the interest of presentation process, presentation process is vivid and easy to operate.Student
Whole process can also be carried out to presentation process to view and emulate, contribute to student to understand the theoretical principle of Physical Experiment, excite by the device
The learning initiative of student.The technology that demo function is single, presentation process shortage is interesting for alleviating prior art presence is asked
Topic.
Other feature and advantage of the present utility model will illustrate in the following description, also, partly from specification
In become apparent, or understood by implementing the utility model.The purpose of this utility model and other advantages are in explanation
Specifically noted structure is realized and obtained in book, claims and accompanying drawing.
To enable above-mentioned purpose of the present utility model, feature and advantage to become apparent, preferred embodiment cited below particularly, and
Coordinate appended accompanying drawing, be described in detail below.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
The accompanying drawing used required in embodiment or description of the prior art is briefly described, it should be apparent that, describe below
In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.
The structural representation for the electromagnet apparatus for demonstrating that Fig. 1 provides for the utility model embodiment；
In the electromagnet apparatus for demonstrating that Fig. 2 provides for the utility model embodiment, the structural representation of electromagnet group；
In the electromagnet apparatus for demonstrating that Fig. 3 provides for the utility model embodiment, the structural representation of figure demonstrating panel；
The structural representation for the electromagnet demonstration instrument that Fig. 4 provides for the utility model embodiment.
Icon：
100- electromagnet apparatus for demonstrating；110- electromagnet groups；111- iron cores；112- coils；120- figure demonstrating panels；
121- the first acrylic dividing plates；122- the second acrylic dividing plates；123- metal dusts；130- drive circuits；131- audible spectrums
Analysis module；132- solenoid actuated modules；140- audio process；150- electric supply installations；160- audio players；200- master
Body cabinet；300- support bases.
Embodiment
To make the purpose, technical scheme and advantage of the utility model embodiment clearer, below in conjunction with accompanying drawing to this
The technical scheme of utility model is clearly and completely described, it is clear that described embodiment is that the utility model part is real
Apply example, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making
The every other embodiment obtained under the premise of creative work, belongs to the scope of the utility model protection.
At present, traditional electromagnetics teaching teaching aid is dry as dust, lacks interesting, illustrative is poor, teacher is difficult to by religion
Tool has transferred the learning initiative of student, and teacher makes electromagnetism by oneself to improve the interest of lecture experiment with reference to field research
Related teaching aid, and limited by factors such as time, conditions, it is difficult to lively intuitively teaching aid model is completed, is teaching aid
Penetration and promotion brings difficulty, based on this, and the utility model embodiment provides a kind of electromagnet apparatus for demonstrating and electromagnet is drilled
Show instrument, the demo function of physical teaching aid can be enriched, strengthen the interest of presentation process.
Referring to the structural representation of Fig. 1, the utility model embodiment electromagnet apparatus for demonstrating provided.The utility model is real
The electromagnet apparatus for demonstrating 100 of example offer, including electromagnet group 110, figure demonstrating panel 120, drive circuit 130 and audio are provided
Processor 140.
Electromagnet group is arranged at the bottom of figure demonstrating panel, and is connected with drive circuit.Electromagnet group uses iron core
Post or folded silicon steel slice are as yoke, and yoke is often referred to the soft magnetism for itself not producing magnetic field, a magnetize line of force is transmitted in magnetic circuit
Material, yoke is generally manufactured using the higher soft iron of permeability, steel and magnetically soft alloy, in some special occasions, yoke
Also useful Ferrite Material is manufactured.Therefore, above-mentioned iron core column yoke can also use Ferrite Material.Due to depositing for yoke
, it is possible to achieve the magnetic line of force that hot-wire coil is produced is transferred to the purpose of specified location, the generation of leakage field phenomenon is reduced.
Specifically, in the electromagnet apparatus for demonstrating that the utility model embodiment is provided, electromagnet group includes 64 electromagnet,
Every electromagnet includes iron core 111 and the coil 112 being wound in outside iron core.Electromagnet group is to realize the basis dress of figure demonstrating
Put, the core length and diameter in the electromagnet group can do appropriate adjustment, one according to the overall dimensions of electromagnet apparatus for demonstrating
As in the case of, the core length that classroom instruction is used is 80 to 100 millimeter, a diameter of 5 to 10 millimeters.Use and lead outside iron core
The strong copper wires of electrical property or aluminum wire, wind wire, are deposited during energization in wire clockwise or counterclockwise outside iron core
In electric current, according to H. C. Oersted Experiment principle, there is magnetic field around electrified wire, due to the effect of iron core yoke, by electrified wire
The magnetic field aggregation of generation, now iron core band is magnetic.According to Ampere's law, the magnetic pole of now iron core can interpolate that.When in coil
Current interruptions when, the magnetic of iron core disappears immediately, by control coil energization situation, realizes that the magnetic of iron core is controllable so that
Reach the purpose of switching Presentation Graphics.
Further, in the electromagnet apparatus for demonstrating that the utility model embodiment is provided, 64 electromagnet arrangement modes are 8
The rectangular arranged that row 8 is arranged, and col width is high equal with row.The electromagnet apparatus for demonstrating provided referring to Fig. 2, the utility model embodiment
In, the structural representation of electromagnet group.Electromagnet is uniformly arranged into matrix, with the figure demonstrating panel being placed in above electromagnet group
Corresponding in position, when startup of the electromagnet in electromagnet group into rule, the iron powder in figure demonstrating panel is by electricity
The magnetic force sucking action of electromagnet in group of magnets, is moved to magnetic electromagnet, forms sequence or special pattern.
Audio process carries out spectrum analysis to audio file, generates and sends audible spectrum information.Audio process
Input receives audio file, carries out spectrum analysis to the audio file received, obtains audio corresponding with the audio file
Spectrum information, frequency spectrum is the abbreviation of frequency spectral density, is the distribution curve of frequency, and complex oscillation is decomposed into amplitude difference and frequency
Different resonance oscillations, the amplitude of these resonance oscillations is called frequency spectrum by the figure of frequency permutation.Above-mentioned audible spectrum information includes sound
The band information of frequency file, such as high pitch frequency range, alt frequency range, middle bass frequency range and bass frequency range, finally believe audible spectrum
Breath is sent to connected drive circuit.
Specifically, in the electromagnet apparatus for demonstrating that the utility model embodiment is provided, audio process is WD302416 frequencies
Compose device.WD302416 frequency spectrums device is equipped with power supply and grounding pin, level adjustment pin, 3 signal input pins and 41 outputs
Pin, the drive output signal that 16 rows 24 can be controlled to arrange.
Above-mentioned drive circuit is also connected with audio process.The output end of audio process and the input phase of drive circuit
Connection.Drive circuit receives audible spectrum information, generates and sends solenoid actuated information.Different audible spectrum information correspondences
Sound frequency ranges different in audio file, different sound frequency ranges correspond to different solenoid actuated information, according to electromagnetism
Iron activation bit starts electromagnet, realizes the figure switching in figure demonstrating panel.
Specifically, in the electromagnet apparatus for demonstrating that the utility model embodiment is provided, drive circuit 130 includes audible spectrum
Analysis module 131 and solenoid actuated module 132.The output end of audible spectrum analysis module and the output of above-mentioned audio process
End is connected, and the output end of audible spectrum analysis module is connected with the input of solenoid actuated module.
Audible spectrum analysis module receives and analyzes audible spectrum information, divides audible spectrum interval.Audible spectrum is analyzed
Module obtains the band information of audible spectrum according to the audible spectrum information sent by audio process, according to the band information
Interval division is carried out to audible spectrum, high pitch frequency range, alt frequency range, middle bass frequency range and bass frequency range are respectively divided into
Treble spectrum is interval, alt frequency spectrum is interval, middle bass spectral is interval and bass spectral is interval.
Solenoid actuated module is interval according to audible spectrum, generates and sends solenoid actuated information.Corresponding to different
Audible spectrum is interval, and solenoid actuated module generates different solenoid actuated information, to be distributed by the magnetic of electromagnet group
Form different figures.The solenoid actuated information of solenoid actuated module generation includes each being wrapped in iron core in electromagnet group
The electrifying information of outside coil.
Electromagnet group starts according to solenoid actuated information.Coil outside electromagnet starts according to solenoid actuated information
It is powered or powers off, for each electromagnet, when solenoid actuated information is powered to start, coil electricity, coil is wound
Iron core produce magnetic, attract figure demonstrating panel itself metal dust, produce displacement.When solenoid actuated information is power-off
When, coil blackout, the iron core that coil is wound is nonmagnetic, and the metal dust of figure demonstrating panel itself attracts without magnetic force, powder
When other electromagnet have magnetic force attraction, direction movement is produced to magnetic force, or powder do not attract by magnetic force, it is static in the original location.
Figure demonstrating panel carries out the display of figure according to the startup rule of electromagnet.The startup of electromagnet is with audio file
Corresponding audible spectrum information and change, i.e., electromagnet follows certain rule and started.Therefore, according to solenoid actuated information
Also there is certain regularity when starting electromagnet, so that the figure in figure demonstrating panel also has regularity, thing is enhanced
Manage the intuitive and interest of experimental phenomena.
Specifically, in the electromagnet apparatus for demonstrating that the utility model embodiment is provided, figure demonstrating panel 120 includes first
Acrylic dividing plate 121, the second acrylic dividing plate 122 and the gold being placed between the first acrylic dividing plate and the second acrylic dividing plate
Belong to powder 123.In the electromagnet apparatus for demonstrating provided referring to Fig. 3, the utility model embodiment, the structure of figure demonstrating panel is shown
It is intended to.Using the figure demonstrating panel of acrylic dividing plate have good light transmission, pure color, rich color, it is attractive in appearance smooth and
The advantage of service life length, student being capable of intuitively observation experiment phenomenon.Metal dust is can be by the ferromagnetism of attraction
Powder, is the magnetic force for being capable of the generation of quick response electricity group of magnets in present graphical, rapid when magnetic force disappears to depart from magnetic force constraint.
Further, in the electromagnet apparatus for demonstrating that the utility model embodiment is provided, above-mentioned metal dust is iron powder.Iron
Powder is obvious for the response of magnetic force, belongs to soft magnetic material, and remanent magnetism and coercive force all very littles of soft magnetic material, i.e. magnetic hysteresis are returned
Line is very narrow, and it is almost overlapped with fundamental magnetization curve.The degree of different ferromagnetic material hysteresis is different, hysteresis curve level
The wider material in direction, that is, the bigger material of area of hysteresis loop, its hysteresis are more serious, i.e. iron powder energy when being powered
Enough quick response magnetic force attracts, and magnetic force constraint speed is broken away from when magnetic force disappears soon, above-mentioned metal dust can also be closed using iron
The powder that gold or other ferrimagnets are made, is appropriate for figure demonstrating.
The electromagnet apparatus for demonstrating that the utility model embodiment is provided, in addition to be connected with audio process and drive circuit
The electric supply installation 150 connect, electric supply installation is output as DC15V.Electric supply installation provides stable power input for device, according to driving
Electromagnet quantity difference the output parameter of electric supply installation can be adjusted.
The electromagnet apparatus for demonstrating that the utility model embodiment is provided, in addition to the audio being connected with audio process are broadcast
Put device 160, audio player plays audio file.The input of audio player is synchronous with the input of audio process to be received
Audio file, audio player built-in audio output module plays the audio file received, while can also be to audio file
Operation is controlled, such as regulation broadcast sound volume.Reach iron powder in figure demonstrating panel with audio player plays with this
Audio file switches the demonstrating effect of figure.
Referring to the structural representation of Fig. 4, the utility model embodiment electromagnet demonstration instrument provided.The utility model is real
Apply example and additionally provide a kind of electromagnet demonstration instrument, including：Main body cabinet 200, support base 300 and above-mentioned electromagnet demonstration dress
Put 100.Support base is arranged at the bottom of main body cabinet, and is bolted to connection with main body cabinet.Chassis body is used
The acryl plates of high light transmittance, bottom is furnished with the screwed hole for being used for being connected with base, and external baffle is carried out by glass sealing
Connection, gets a clear view, is easy to observation of students experimental demonstration process.Support base uses alloy material, and stabilized structure is durable, support
Base top is equipped with screwed hole, and the screwed hole with chassis body bottom is supporting, main body cabinet and support base using bolt with
Nut is fixedly connected.
In addition, electromagnet apparatus for demonstrating is secured by bolts in the inside of main body cabinet.Main body cabinet inside and electromagnet
Apparatus for demonstrating is provided with screwed hole, for being fixedly connected by bolts and nuts, and detachable maintaining is convenient, enhances electromagnet demonstration
The stability of instrument.
Electromagnet apparatus for demonstrating provided by the utility model include electromagnet group, figure demonstrating panel, drive circuit and
Audio process, electromagnet group is arranged at the bottom of figure demonstrating panel, and is connected with drive circuit, drive circuit also with sound
Frequency processor is connected, and audio process carries out spectrum analysis to audio file, generates and sends audible spectrum information, drive circuit
Audible spectrum information is received, solenoid actuated information is generated and sent, electromagnet group starts according to solenoid actuated information, figure
Demonstrate the display that panel carries out figure according to the startup rule of electromagnet.The technical scheme is by using spectrum analysis technique and Austria
This special experimental principle is combined, and the figure shows that audio file starts with electromagnet are matched, the response of figure demonstrating switching
Time is short, and its broadcasting synchronization extent with audio file is high, enriches the demo function of physical teaching aid, enhances presentation process
Interest, presentation process is vivid and easy to operate.Student can also carry out whole process to presentation process by the device and view and emulate,
Contribute to student to understand the theoretical principle of Physical Experiment, excite the learning initiative of student.Alleviate drilling for prior art presence
Show the technical problem that function is single, presentation process lacks interest.
In several embodiments provided herein, it should be understood that each functional unit can be integrated in a processing
In unit or unit is individually physically present, can also two or more units it is integrated in a unit.
In addition, in the description of the utility model embodiment, unless otherwise clearly defined and limited, term " installation ", " connected ",
" connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can be
Mechanically connect or electrically connect；Can be joined directly together, can also be indirectly connected to by intermediary, can be two
The connection of element internal.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood in this practicality
Concrete meaning in new.
, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation or position relationship of the instruction such as " level ", " interior ", " outer " are, based on orientation shown in the drawings or position relationship, to be only
Described for the ease of description the utility model and simplifying, rather than to indicate or imply that signified device or element must have specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition, term " the
One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that indicating or implying relative importance.
Finally it should be noted that：Embodiment described above, embodiment only of the present utility model, to illustrate this
The technical scheme of utility model, rather than its limitations, protection domain of the present utility model are not limited thereto, although with reference to foregoing
The utility model is described in detail embodiment, it will be understood by those within the art that：It is any to be familiar with this skill
The technical staff in art field is in the technical scope that the utility model is disclosed, and it still can be to the skill described in previous embodiment
Art scheme is modified or can readily occurred in change, or carries out equivalent substitution to which part technical characteristic；And these modifications,
Change is replaced, and the essence of appropriate technical solution is departed from the spirit and model of the utility model embodiment technical scheme
Enclose, should all cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should be wanted with the right
The protection domain asked is defined.
Claims (10)
1. a kind of electromagnet apparatus for demonstrating, it is characterised in that including electromagnet group, figure demonstrating panel, drive circuit and audio
Processor；
The electromagnet group is arranged at the bottom of the figure demonstrating panel, and is connected with the drive circuit；
The drive circuit is also connected with the audio process；
The audio process carries out spectrum analysis to audio file, generates and sends audible spectrum information；
The drive circuit receives the audible spectrum information, generates and sends solenoid actuated information；
The electromagnet group starts according to the solenoid actuated information；
The figure demonstrating panel carries out the display of figure according to the startup rule of electromagnet.
2. electromagnet apparatus for demonstrating according to claim 1, it is characterised in that the electromagnet group includes 64 electromagnetism
Iron, the every electromagnet includes iron core and the coil being wound in outside the iron core.
3. electromagnet apparatus for demonstrating according to claim 2, it is characterised in that 64 electromagnet arrangement modes are 8
The rectangular arranged that row 8 is arranged, and col width is high equal with row.
4. electromagnet apparatus for demonstrating according to claim 3, it is characterised in that the drive circuit includes audible spectrum point
Analyse module and solenoid actuated module；
The output end of the audible spectrum analysis module is connected with the input of the solenoid actuated module；
The audible spectrum analysis module receives and analyzes the audible spectrum information, divides audible spectrum interval；
The solenoid actuated module is interval according to the audible spectrum, generates and sends solenoid actuated information.
5. electromagnet apparatus for demonstrating according to claim 1, it is characterised in that the audio process is WD302416 frequencies
Compose device.
6. electromagnet apparatus for demonstrating according to claim 1, it is characterised in that also including with the audio process and institute
State the electric supply installation that drive circuit is connected；
The electric supply installation is output as DC15V.
7. electromagnet apparatus for demonstrating according to claim 1, it is characterised in that also including being connected with the audio process
The audio player connect；
Audio file described in the audio player plays.
8. electromagnet apparatus for demonstrating according to claim 1, it is characterised in that it is sub- that the figure demonstrating panel includes first
Gram force dividing plate, the second acrylic dividing plate and the metal dust being placed between the first acrylic dividing plate and the second acrylic dividing plate.
9. electromagnet apparatus for demonstrating according to claim 8, it is characterised in that the metal dust is iron powder.
10. a kind of electromagnet demonstration instrument, it is characterised in that including：Main body cabinet, support base and such as claim 1 to 9 times
Electromagnet apparatus for demonstrating described in one；
The support base is arranged at the bottom of the main body cabinet, and is bolted to connection with the main body cabinet；
The electromagnet apparatus for demonstrating is secured by bolts in the inside of the main body cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720127223.3U CN206489804U (en) | 2017-02-13 | 2017-02-13 | Electromagnet apparatus for demonstrating and electromagnet demonstration instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720127223.3U CN206489804U (en) | 2017-02-13 | 2017-02-13 | Electromagnet apparatus for demonstrating and electromagnet demonstration instrument |
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| Publication Number | Publication Date |
|---|---|
| CN206489804U true CN206489804U (en) | 2017-09-12 |
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| CN201720127223.3U Expired - Fee Related CN206489804U (en) | 2017-02-13 | 2017-02-13 | Electromagnet apparatus for demonstrating and electromagnet demonstration instrument |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107833513A (en) * | 2017-12-04 | 2018-03-23 | 哈尔滨工业大学深圳研究生院 | A kind of ESEM demenstration method and device without using optical lens |
-
2017
- 2017-02-13 CN CN201720127223.3U patent/CN206489804U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107833513A (en) * | 2017-12-04 | 2018-03-23 | 哈尔滨工业大学深圳研究生院 | A kind of ESEM demenstration method and device without using optical lens |
| CN107833513B (en) * | 2017-12-04 | 2020-05-29 | 哈尔滨工业大学深圳研究生院 | Scanning electron microscope demonstration method and device without optical lens |
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