CN206421719U - Magnetic driven resonance demonstration instrument - Google Patents
Magnetic driven resonance demonstration instrument Download PDFInfo
- Publication number
- CN206421719U CN206421719U CN201621427079.7U CN201621427079U CN206421719U CN 206421719 U CN206421719 U CN 206421719U CN 201621427079 U CN201621427079 U CN 201621427079U CN 206421719 U CN206421719 U CN 206421719U
- Authority
- CN
- China
- Prior art keywords
- coil
- radial direction
- magnet
- chassis
- cycloid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
The utility model is related to a kind of magnetic driven resonance demonstration instrument, is that chassis is fixedly mounted with non-ferric column and non-ferric riser arranged side by side upwards, riser middle part is fixedly mounted with forward Helmholtz coil；The non-ferric horizontal rotating disc of circumferential hinge strip rotary positioning mechanism at the top of column, horizontal rotating disc outer rim fits have multiple radial direction spiders for separating lifting magnet cycloid side by side, wherein one magnet cycloid passes through the upper horizontal secondary coil of Helmholtz coil from top to bottom, and lower end permanent magnet is hung down between horizontal secondary coil up and down；The height area that chassis is fixedly mounted with below lower horizontal secondary coil before coaxial normal coil, riser between horizontal secondary coil up and down is provided with graph paper, and chassis is equipped with camera in front of horizontal secondary coil up and down by stand.With multifunction demonstration, demonstrating effect substantially, adjusts the strong advantage of demonstrability.
Description
Technical field
The utility model is related to a kind of resonance demonstration instrument, more particularly to a kind of magnetic driven resonance demonstration instrument.
Background technology
A kind of resonance demonstration instrument of existing variable vibration frequency：Including frame, the bottom of frame is connected with pedestal, frame
Top, which is connected with bearing block, bearing block, is provided with bearing, and rotating shaft is arranged in frame by bearing, and machine is stretched out in one end of rotating shaft
Oscillator is connected with by fine rule in frame, rotating shaft, the part that frame is stretched out in rotating shaft is provided with aperture, and swing arm is set through aperture, and magnetic is slided
Block is enclosed on swing rod, and the side magnetic of magnetic slider is connected with cam, and cam is arranged on the motor shaft of buncher, speed governing electricity
Machine is arranged on lifting platform, and the adjusting screw for adjusting lifting platform height is provided with lifting platform.But, its vibration source and biography
It is all mechanical to move, and regulation demonstrability is poor.
The content of the invention
The utility model aims to overcome that the drawbacks described above of prior art adjusts the strong electromagnetism of demonstrability there is provided a kind of
Instigate resonance demonstration instrument.
To achieve the above object, the utility model magnetic driven resonance demonstration instrument includes non-ferric chassis and Helmholtz's line
Circle, normal coil, magnet cycloid and for providing frequency to Helmholtz coil or normal coil, voltage can adjust alternating current
Signal generator；Chassis is fixedly mounted with the middle part of a non-ferric column and a non-ferric riser arranged side by side, riser and is fixedly mounted with forward upwards
The secondary coil horizontal up and down of Helmholtz coil；It is circumferential at the top of column to be hinged a non-ferric level turn with rotary positioning mechanism
Disk, horizontal rotating disc outer rim fits have multiple separated radial direction spiders arranged side by side, the lifting one downwards of each radial direction spider
Magnet cycloid of the lower end with permanent magnet, wherein a magnet cycloid passes through the upper level pair of the Helmholtz coil from top to bottom
Coil, and lower end permanent magnet hung down into up and down between horizontal secondary coil；Chassis be fixedly mounted with below lower horizontal secondary coil with up and down
Height area before the coaxial normal coil of horizontal secondary coil, riser between horizontal secondary coil up and down is provided with graph paper, bottom
Disk is equipped with front of horizontal secondary coil up and down by non-ferric stand to be swung for shooting magnet cycloid before graph paper and graph paper
The camera of situation.Wherein magnet cycloid can be made up of changeable different elastic suspended lanyard lower end fixed permanent magnets.I.e. by
Signal generator, Helmholtz coil, normal coil, magnet cycloid, the first-class major part composition of shooting, are sent out by reconciling signal
The output of raw device, rotary top rotating disk shifting magnet cycloid position can be visually observed that magnet being total under alternating magnetic field
Shake, forced vibration, undamped concussion, these, which show, to be recorded by camera, and are projected on screen, realize classroom teach
Learn, computer dynamic image acquisition can be coordinated to carry out later data processing.With multifunction demonstration, demonstrating effect substantially, is adjusted
Save demonstrability strong, can be used for classroom instruction, increase the advantage of student's perceptual knowledge.
As optimization, signal generator is exported equipped with a type dual output station change-over switch, a station of switching switch is selected
Be electrically connected Helmholtz coil, another station output end of end is electrically connected normal coil, and the input of switching switch is electrically connected signal generator
Output end.
As optimization, the output line terminal of signal generator, which is electrically connected, selects a type dual output station change-over switch input, switching
Be electrically connected Helmholtz coil, another station output end of one station output end of switch is electrically connected normal coil.
As optimization, the wired or wireless connection educational projector of camera or wired or wireless connection computer.
As optimization, the further wired or wireless connection educational projector of the computer.
As optimization, signal generator is the wired or wireless connection computer control signal output of control signal input
For providing frequency, waveform, voltage, the signal generator of current adjustment section alternating current to Helmholtz coil or normal coil.
As optimization, chassis is transverse rectangular, and column is packed in the middle part of transverse rectangular chassis, and signal generator is configured in horizontal stroke
The column side of rectangular chassis, riser and Helmholtz coil, normal coil and camera configuration are on transverse rectangular chassis
Column opposite side.
As optimization, the radial direction spider fitted manner of the horizontal rotating disc and lifting magnet cycloid is the overhanging branch of radial direction
Frame base portion is formed with outer rim above radial direction long strip type vertical through holes, horizontal rotating disc and is formed with the vertical screw with vertical screw or bolt,
Radial direction spider base portion is fixed on the level by the vertical screw or bolt through the radial direction long strip type vertical through holes
Above rotating disk outer rim.
As optimization, radial direction spider is the handle end that upward bending is formed with behind the base portion of strip template, handle end
The base portion in front is formed with the radial direction long strip type vertical through holes, and the front end of strip template is connected by vertical through holes or wire clamp or line hook
Connect the upper end of magnet cycloid；Radial direction spider and magnet cycloid are circumferentially equally distributed three groups in horizontal rotating disc.
As optimization, column end face center is formed with screw mandrel upwards, and circumferential slide fit suit level turns screw mandrel successively from bottom to top
Disk and lower gasket, spring, Upper gasket and silk connect the nut for compressing horizontal rotating disc downwards by spring and pad, column top surface
It is mutual up and down that circumferential uniform close distribution is formed respectively with indirectly directly below or by the ring disk part being fixedly mounted with respectively with horizontal rotating disc
The radial groove and radial direction fin of engagement are formed respectively with intermeshing high no more than ball above and below circumferential uniform close distribution
The segment-shaped pit of radius and the high segment-shaped plush copper for being not more than the radius of a ball.The nut is made up of ferroic material.The structure at top
The situation of making is：Add nut to fix by a rotating disk, can be rotated around column, the suspension strop of the different elasticity of switching magnet cycloid can
Magnet cycloid position is adjusted by rotary turnplate or radial direction spider, not the used time can by magnet adsorption column fixation spiral shell
On mother, in rotation to rotating disk.
Specifically：Regulate signal generator changes " driving force ", and signal generator is used to provide frequency, voltage etc. to coil
Adjustable alternating current, and have multiple waveforms, such as sine wave, triangular wave, sawtooth waveforms, square wave etc..Using alternating magnetic field and
In the case of cycloid coupled resonance, driving force, which is equal to eigenfrequency, can easily and directly measure the eigenfrequency of cycloid.Frequency multiplication with
Covibration is can observe in the case of fundamental frequency.
For example：Resonance demonstration：The output of signal generator connects Helmholtz coil, progressively heightens the output of signal generator
Frequency, it can be seen that violent oscillation phenomenon occurs for magnet cycloid near the eigenfrequency of cycloid, continues to raise frequency, again
Covibration is also observed that at frequency.
Forced vibration is demonstrated：The natural frequency when output frequency of adjustment signal generator does simple harmonic motion for magnetic pendulum it is strange
Several times frequency, such as fundamental frequency, frequency tripling, fifth harmonic, the output of signal generator connects normal coil, you can it was observed that magnetic pendulum is in alternation magnetic
Forced vibration off field.
Undamped oscillation is demonstrated：The output frequency of adjustment signal generator is natural frequency when magnetic pendulum does simple harmonic motion
Even number frequency multiplication, such as two frequencys multiplication, quadruple, six frequencys multiplication, the output of signal generator connect normal coil, you can it was observed that magnetic pendulum is being handed over
Undamped oscillation under varying magnetic field.
After adopting the above technical scheme, the utility model magnetic driven resonance demonstration instrument has multifunction demonstration, demonstration
Substantially, regulation demonstrability is strong, can be used for classroom instruction, increases the advantage of student's perceptual knowledge for effect.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model magnetic driven resonance demonstration instrument.
Embodiment
As illustrated, the utility model magnetic driven resonance demonstration instrument include non-ferric chassis 1 and Helmholtz coil 2,
Normal coil 3, magnet cycloid 4 and for providing frequency to Helmholtz coil 2 or normal coil 3, voltage can adjust alternating current
Signal generator 5；Chassis 1 is fixedly mounted with a non-ferric column 6 and a non-ferric riser 7 arranged side by side upwards, the middle part of riser 7 to
Before be fixedly mounted with the secondary coil horizontal up and down of Helmholtz coil 2；The top of column 6 is circumferential to be hinged a non-ferric with rotary positioning mechanism
Property horizontal rotating disc 8, the outer rim fits of horizontal rotating disc 8, which have, multiple separates radial direction spiders 81 arranged side by side, each radial direction spider
Magnet cycloid 4 of the lower end with permanent magnet 41 is lifted downwards, wherein a magnet cycloid 4 passes through the Hai Muhuo from top to bottom
The hereby upper horizontal secondary coil of coil 2, and lower end permanent magnet 41 hung down between horizontal secondary coil up and down；Chassis 1 is in lower level
The normal coil 3 coaxial with horizontal secondary coil up and down is fixedly mounted with below secondary coil, riser 7 is above between horizontal secondary coil up and down
Height area is provided with graph paper 70, and chassis 1 is equipped with by non-ferric stand 91 in front of horizontal secondary coil up and down and sat for shooting
Magnet cycloid 4 swings the shooting 9 of situation before millimeter paper 70 and graph paper.Wherein magnet cycloid 4 can be by changeable different bullets
Property suspension strop lower end fixed permanent magnet 41 is made.I.e. by signal generator 5, Helmholtz coil 2, normal coil 3, magnet cycloid
4th, the major part such as camera 6 is constituted, by reconciling the output of signal generator 5, the shifting magnet cycloid 4 of rotary top rotating disk 8
Position, can be visually observed that resonance, forced vibration, undamped concussion of the magnet 41 under alternating magnetic field, these show can
To be recorded by camera 9, and screen is projected on, realizes classroom instruction, the dynamic image acquisition of computer 11 can be coordinated to carry out
Later data processing.Strong with regulation demonstrability, multifunction demonstration, demonstrating effect substantially, can be used for classroom instruction, increase
Plus the advantage of student's perceptual knowledge.
Wherein：Signal generator 5 can be equipped with a type dual output station change-over switch be selected, and a station of switching switch is exported
Be electrically connected Helmholtz coil 2, another station output end of end is electrically connected normal coil 3, and the input of switching switch is electrically connected signal
The output end of device.It can also be that the output line terminal of signal generator 5 is electrically connected and selects a type dual output station change-over switch input, cut
Be electrically connected Helmholtz coil 2, another station output end of a station output end for changing switch is electrically connected normal coil 3.
Wherein：The wired or wireless connection educational projector of camera 9 or wired or wireless connection computer 11.Can be with
It is：The further wired or wireless connection educational projector of the computer 11.
Wherein：Signal generator 5 is the wired or wireless connection control signal output of computer 11 of control signal input
For providing frequency, waveform, voltage, the signal generator of current adjustment section alternating current to Helmholtz coil 2 or normal coil 3
5。
Wherein：Chassis 1 is transverse rectangular, and column 6 is packed in the middle part of transverse rectangular chassis 1, and signal generator 5 is configured in horizontal stroke
The column side of rectangular chassis 1, riser 7 and Helmholtz coil 2, normal coil 3 and camera 9 are configured at transverse rectangular bottom
The column opposite side of disk 1.
Wherein：The fitted manner of radial direction spider 81 of the horizontal rotating disc 8 and lifting magnet cycloid 4 is the overhanging branch of radial direction
The base portion of frame 81 is formed with radial direction long strip type vertical through holes, and outer rim is formed with the vertical spiral shell with vertical screw or bolt to horizontal rotating disc 8 above
The base portion of radial direction spider 81 is fixed on described by hole, the vertical screw or bolt through the radial direction long strip type vertical through holes
Above the outer rim of horizontal rotating disc 8.
Radial direction spider 81 is the base in front of the handle end that upward bending is formed with behind the base portion of strip template, handle end
Portion is formed with the radial direction long strip type vertical through holes, and the front end of strip template is put by vertical through holes or wire clamp or line hook connects magnet
The upper end of line 4；Radial direction spider 81 and magnet cycloid 4 are circumferential equally distributed three groups in horizontal rotating disc 8.
Wherein：The end face center of column 6 is formed with screw mandrel upwards, and circumferential slide fit is set with horizontal rotating disc 8 to screw mandrel successively from bottom to top
The nut for compressing horizontal rotating disc 8 downwards by spring and pad, the top surface of column 6 are connect with lower gasket, spring, Upper gasket and silk
It is mutual up and down that circumferential uniform close distribution is formed respectively with indirectly directly below or by the ring disk part being fixedly mounted with respectively with horizontal rotating disc 8
The radial groove and radial direction fin of engagement are formed respectively with intermeshing high no more than ball above and below circumferential uniform close distribution
The segment-shaped pit of radius and the high segment-shaped plush copper for being not more than the radius of a ball.It can also be：The nut is made up of ferroic material,
The construction situation at top is：Fixed, can be rotated around column 6 by a rotating disk 8 plus nut, the different elasticity of switching magnet cycloid 4
Suspension strop, the position of magnet cycloid 4 can be can adjust by rotary turnplate 8 or radial direction spider 81, the used time can be by magnet
41 absorption are in the fixing nut of column 6, in rotation to rotating disk 8.
Specifically：Regulate signal generator 5 changes " driving force ", and signal generator 5 is used to provide frequency, voltage to coil
Etc. adjustable alternating current, and there are multiple waveforms, such as sine wave, triangular wave, sawtooth waveforms, square wave etc..Utilize alternating magnetic field
In the case of cycloid coupled resonance, driving force, which is equal to eigenfrequency, can easily and directly measure the eigenfrequency of cycloid.Frequency multiplication
With can observe covibration in the case of fundamental frequency.
For example：Resonance demonstration：The output of signal generator connects Helmholtz coil 2, progressively heightens the defeated of signal generator
Go out frequency, it can be seen that violent oscillation phenomenon occurs for magnet cycloid near the eigenfrequency of cycloid, continue to raise frequency,
Covibration is also observed that at frequency multiplication.
Forced vibration is demonstrated：The natural frequency when output frequency of adjustment signal generator does simple harmonic motion for magnetic pendulum it is strange
Several times frequency, such as fundamental frequency, frequency tripling, fifth harmonic, the output of signal generator connects normal coil 3, you can it was observed that magnetic pendulum is in alternation
Forced vibration under magnetic field.
Undamped oscillation is demonstrated：The output frequency of adjustment signal generator is natural frequency when magnetic pendulum does simple harmonic motion
Even number frequency multiplication, such as two frequencys multiplication, quadruple, six frequencys multiplication, the output of signal generator connect normal coil 3, you can it was observed that magnetic pendulum exists
Undamped oscillation under alternating magnetic field.
After adopting the above technical scheme, the utility model magnetic driven resonance demonstration instrument has multifunction demonstration, demonstration
Substantially, regulation demonstrability is strong, can be used for classroom instruction, increases the advantage of student's perceptual knowledge for effect.
Claims (10)
1. a kind of magnetic driven resonance demonstration instrument, it is characterised in that including non-ferric chassis and Helmholtz coil, normal coil,
Magnet cycloid and for providing frequency to Helmholtz coil or normal coil, voltage can adjust the signal generator of alternating current；
Chassis is fixedly mounted with the middle part of a non-ferric column and a non-ferric riser arranged side by side, riser and is fixedly mounted with Helmholtz coil forward upwards
Secondary coil horizontal up and down；It is circumferential at the top of column to be hinged a non-ferric horizontal rotating disc with rotary positioning mechanism, horizontal rotating disc
Outer rim fits have multiple separated radial direction spiders arranged side by side, piece lower end band permanent magnet of each radial direction spider lifting downwards
Magnet cycloid, wherein a magnet cycloid from top to bottom pass through the Helmholtz coil upper horizontal secondary coil, and under
End permanent magnet is hung down between horizontal secondary coil up and down；Chassis is fixedly mounted with same with horizontal secondary coil up and down below lower horizontal secondary coil
Height area before the normal coil of axle, riser between horizontal secondary coil up and down is provided with graph paper, and chassis is in level up and down
Camera for shooting the emotionally condition of magnet cycloidal pendulum before graph paper and graph paper is equipped with by non-ferric stand in front of secondary coil.
2. resonance demonstration instrument according to claim 1, it is characterised in that signal generator is cut equipped with selecting a type dual output station
Change switch, be electrically connected Helmholtz coil, another station output end of a station output end of switching switch is electrically connected normal coil, switching
The input of switch is electrically connected the output end of signal generator.
3. resonance demonstration instrument according to claim 1, it is characterised in that the output line terminal of the signal generator type of selecting that is electrically connected is double
Output station switches switch input terminal, and a station output end of switching switch is electrically connected Helmholtz coil, another station output end
Be electrically connected normal coil.
4. resonance demonstration instrument according to claim 1, it is characterised in that the wired or wireless connection educational projector of camera or
The wired or wireless connection computer of person.
5. resonance demonstration instrument according to claim 4, it is characterised in that the computer further wired or wireless connection teaching
Projecting apparatus.
6. resonance demonstration instrument according to claim 1, it is characterised in that signal generator be control signal input it is wired or
Being used for of wireless connection computer control signal output provides frequency, waveform, voltage, electricity to Helmholtz coil or normal coil
The signal generator of the adjustable alternating current of stream.
7. resonance demonstration instrument according to claim 1, it is characterised in that chassis is transverse rectangular, and column is packed in transverse rectangular
In the middle part of chassis, signal generator configuration in the column side on transverse rectangular chassis, riser and Helmholtz coil, normal coil and
Camera configures the column opposite side on transverse rectangular chassis.
8. according to any resonance demonstration instruments of claim 1-7, it is characterised in that the horizontal rotating disc and lifting magnet cycloid
Radial direction spider fitted manner to be that radial direction spider base portion is formed with above radial direction long strip type vertical through holes, horizontal rotating disc outer
Edge is formed with the vertical screw with vertical screw or bolt, and the vertical screw or bolt pass through the radial direction long strip type vertical through holes
Radial direction spider base portion is fixed on above the horizontal rotating disc outer rim.
9. resonance demonstration instrument according to claim 8, it is characterised in that radial direction spider for the base portion of strip template behind
The base portion in front of the handle end of upward bending, handle end is formed with to be formed with before the radial direction long strip type vertical through holes, strip template
End passes through vertical through holes or the upper end of wire clamp or line hook connects magnet cycloid；Radial direction spider and magnet cycloid are to turn in level
Disk is circumferentially equally distributed three groups.
10. according to any resonance demonstration instruments of claim 1-7, it is characterised in that column end face center is formed with screw mandrel upwards,
Screw mandrel from bottom to top successively circumferential slide fit suit horizontal rotating disc and lower gasket, spring, Upper gasket and silk connect for by spring and
Pad compresses downwards the nut of horizontal rotating disc, and column top surface and horizontal rotating disc are directly below or by between the ring disk part that is fixedly mounted with respectively
Connect be formed respectively with above and below the distribution of circumferential uniform close intermeshing radial groove and radial direction fin or be formed respectively with it is circumferential
The intermeshing high segment-shaped pit for being not more than the radius of a ball and the high segment-shaped for being not more than the radius of a ball are convex above and below even tight distribution
Head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621427079.7U CN206421719U (en) | 2016-12-23 | 2016-12-23 | Magnetic driven resonance demonstration instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621427079.7U CN206421719U (en) | 2016-12-23 | 2016-12-23 | Magnetic driven resonance demonstration instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206421719U true CN206421719U (en) | 2017-08-18 |
Family
ID=59576909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621427079.7U Expired - Fee Related CN206421719U (en) | 2016-12-23 | 2016-12-23 | Magnetic driven resonance demonstration instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206421719U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115810303A (en) * | 2021-09-14 | 2023-03-17 | 南开大学 | Novel Faraday electromagnetic induction experiment device |
-
2016
- 2016-12-23 CN CN201621427079.7U patent/CN206421719U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115810303A (en) * | 2021-09-14 | 2023-03-17 | 南开大学 | Novel Faraday electromagnetic induction experiment device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208498061U (en) | A kind of adjustable display device for education | |
| CN206489738U (en) | A kind of education and instruction apparatus for demonstrating | |
| CN206421719U (en) | Magnetic driven resonance demonstration instrument | |
| CN207489277U (en) | A kind of photography teaching shows device | |
| CN207852123U (en) | A kind of Mechatronic Engineering teaching part material object display device | |
| CN209679440U (en) | One kind being used for basketball shooting training basketball stands | |
| CN209511501U (en) | A kind of liquid crystal display device | |
| CN103943012A (en) | Generator demonstrating model | |
| CN105157950B (en) | A kind of wave simulation device for wave-measuring buoy | |
| CN105788375A (en) | Multifunctional physical exercise teaching instrument | |
| CN107839783A (en) | A kind of robot leg firm organization | |
| CN112863299A (en) | Automobile parts three-dimensional display device for automobile teaching | |
| CN109615978A (en) | A kind of electronic music teaching aid | |
| CN207145901U (en) | A kind of novel video instrument of micro- class | |
| CN207503607U (en) | LED ball shape display screen with unmanned plane | |
| CN206877574U (en) | A kind of Optical-Physics Experiment device | |
| CN208110888U (en) | A kind of magnetic field apparatus for demonstrating of teacher's teaching | |
| CN213823457U (en) | Multifunctional electric toy | |
| CN207068267U (en) | The adjustable multimedia display screen of one kind teaching | |
| CN208785724U (en) | A kind of basket shooting apptss imparted knowledge to students and train | |
| CN207264612U (en) | A kind of multimedia remote facility for study | |
| CN202976603U (en) | Teaching demonstration model for vibration damping effect of vibration damping material | |
| CN206532499U (en) | A kind of electrostatic experimental rig | |
| CN209729100U (en) | A kind of university students' innovative undertaking guidance curriculum module simulator | |
| CN105478348B (en) | A kind of efficient vibrating sieving machine and its control method |
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: 20170818 Termination date: 20181223 |