CN203535864U - A circular standing wave generating device - Google Patents
A circular standing wave generating device Download PDFInfo
- Publication number
- CN203535864U CN203535864U CN201320656209.4U CN201320656209U CN203535864U CN 203535864 U CN203535864 U CN 203535864U CN 201320656209 U CN201320656209 U CN 201320656209U CN 203535864 U CN203535864 U CN 203535864U
- Authority
- CN
- China
- Prior art keywords
- standing wave
- motor
- circular standing
- wave generating
- generating means
- 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
- 239000002184 metal Substances 0.000 claims abstract description 19
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 239000002245 particle Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 210000000697 sensory organ Anatomy 0.000 description 1
Images
Abstract
The utility model provides a circular standing wave generating device comprising an electromotor, a metal disc, a screw nut, a hard straight small stick and a metal circular ring, wherein the metal disc is connected with the electromotor; a plurality of apertures which have different distances away from the disc center are arranged in the metal disc; the screw nut is screwed inside one of the apertures; one end of the hard straight small stick is movably connected with the screw nut, and the other end is connected with the metal circular ring. Through the adoption of the circular standing wave generating device of the utility model, circular standing waves can be generated, and the amplitude of the standing waves can be changed through the changing of the diameter of an eccentric circle.
Description
Technical field
The utility model relates to a kind of instruments used for education field, relates in particular to a kind of circular standing wave generating means.
Background technology
Standing wave be in the stack of ripple the most simply, the most basic phenomenon.When two or more ripples meet in same place, the displacement of particle is the displacement sum of each fluctuation, the stack of Here it is ripple.When the phase differential of two train waves is π, the form of stack is standing wave, and its peak swing place is called antinode, and minimum amplitude place is called node.If two row wave amplitudes are equal, node amplitude is zero.
The phenomenon of standing wave and formation are the knowledge that requires student to grasp in physical basis teaching, and the forming process of understanding standing wave is to learn the basis of the stack of ripple and the interference of ripple below, so the knowledge of understanding and grasp standing wave is an important link in study.Although standing wave be in the stack of ripple the most simply, the most basic phenomenon, also be quite general phenomenon in life, that but people's sense organ is often difficult to is complete, feel visually this phenomenon, thereby people are not deep to the perceptual knowledge of standing wave, so for student, use standing wave demonstrator to be very important in teaching.
In prior art, the apparatus for demonstrating of standing wave has many, and the use in teaching is also quite general, as what many Educational Instrument Factories produced, with loudspeaker, makes the Frequency Adjustable standing wave demonstrator of vibration source; Also useful eccentric motor is made the Frequency Adjustable demonstration device of vibration source etc.
Yet instruments used for education of the prior art or apparatus for demonstrating can only generate shear wave and compressional wave, can not generate circular standing wave, and the wave amplitude of staying generating in prior art fixes, function ratio is more single.In addition, because physics teaching mobility is large, so volume and the inner structure of device are extremely important.The inner structure more complicated of above-mentioned instruments used for education of the prior art or apparatus for demonstrating, volume is also larger.
Utility model content
The utility model produces in view of above-mentioned technical matters.The purpose of this utility model is to propose a kind of circular standing wave generating means, and it can regulate the circular wave amplitude of staying according to actual needs.In addition, circular standing wave generating means volume of the present utility model is small and exquisite, be convenient for carrying, and inner structure is simple, demonstration successful.
Embodiment of the present utility model provides a kind of circular standing wave generating means, and this device comprises motor, rosette, nut, hard straight little rod, and metal ring; Wherein: rosette is connected with motor, and on rosette, have a plurality of holes different apart from the center of circle; Nut is screwed in one of them hole; One end of hard straight little rod is flexibly connected with nut, and the other end is connected with metal ring; When motor rotates, drive successively rosette, nut, hard straight little rod motion, and finally by hard straight little rod, drive metal ring regular swing in perpendicular to produce vibration, produce thus circular standing wave.
Further, described motor is variable-speed motor.
Further, described device also comprises the signal generator being connected with motor, and this signal generator is for regulating the rotating speed of motor.
Further, on rosette, the number in hole is 3, and is respectively 4.23mm with the distance in the center of circle, 8.05mm, 10.35mm.
Further, nut is screwed in different holes, nut is to rotate with different off-centre operations on rosette, and the amplitude that makes thus hard straight little rod move up and down in perpendicular changes, and finally makes the circle difference in wave amplitude of generation.And the amplitude of circular standing wave is along with off-centre operation radius diminishes and diminishes.
Further, the external DC current regulator power supply of motor, changes the rotating speed of motor by changing voltage and current, and when changing the rotating speed of motor, the number that produces standing wave is also different.
Compared with prior art, adopt circular standing wave generating means of the present utility model to there is following beneficial effect:
(1) circular standing wave generating means of the present utility model can produce circular standing wave, has overcome thus and can only generate the problem of shear wave and compressional wave in prior art.
(2) circular standing wave generating means of the present utility model can change in wave amplitude by changing eccentric diameter of a circle, and having overcome thus the wave amplitude of staying generating in prior art is fixing problem.
(3) circular standing wave generating means of the present utility model, volume is small and exquisite, and inner structure is simple, is easy to carry.
Accompanying drawing explanation
In conjunction with accompanying drawing subsequently, from detailed description below, can apparently draw above-mentioned and other object of the present utility model, feature and advantage.In the accompanying drawings:
Fig. 1-2 shows the function composition block diagram according to circular standing wave generating means of the present utility model;
Embodiment
For comprehend the utility model and advantage thereof, below in conjunction with drawings and the specific embodiments, the utility model is described in detail.
The utility model is to utilize train transmission shaft principle: make the some motion of a particle in a plane become moving up and down in perpendicular in line.Main process is: make the particle that moves up and down, drive a hard straight little rod in perpendicular, doing periodic motion, hard straight little rod upper end connects a metal ring, when particle up-down vibration, drive hard straight little rod, hard straight little rod drives again metal ring rule in perpendicular to swing and produces vibration, when changing motor speed, can form and seem the ripple of parking, i.e. circular standing wave in a certain frequency.
Embodiment of the present utility model provides a kind of circular standing wave generating means, and this device comprises motor, rosette, nut, hard straight little rod, and metal ring; Wherein: rosette is connected with motor, and on rosette, have a plurality of holes different apart from the center of circle; Nut is screwed in one of them hole; One end of hard straight little rod is flexibly connected with nut, and the other end is connected with metal ring; When motor rotates, drive successively rosette, nut, hard straight little rod motion, and finally by hard straight little rod, drive metal ring regular swing in perpendicular to produce vibration, produce thus circular standing wave.
Further, described motor is variable-speed motor.
Further, described device also comprises the signal generator being connected with motor, and this signal generator is for regulating the rotating speed of motor.
Further, on rosette, the number in hole is 3, and is respectively 4.23mm with the distance in the center of circle, 8.05mm, 10.35mm.
Further, nut is screwed in different holes, nut is to rotate with different off-centre operations on rosette, and the amplitude that makes thus hard straight little rod move up and down in perpendicular changes, and finally makes the circle difference in wave amplitude of generation.And the amplitude of circular standing wave is along with off-centre operation radius diminishes and diminishes.
Further, the external DC current regulator power supply of motor, changes the rotating speed of motor by changing voltage and current, and when changing the rotating speed of motor, the number that produces standing wave is also different.
Below, with reference to Fig. 1-2, to describing in detail according to circular standing wave generating means of the present utility model.
Circular standing wave generating means of the present utility model comprises: motor 1, rosette 2, nut 3, hard straight little rod 4, metal ring 5, and signal generator 6.Wherein:
Motor 1 is variable-speed motor.In the utility model, motor 1 is connected with signal generator 6, makes thus to regulate by signal generator the rotating speed of motor.Certainly, in the utility model not necessarily, for example motor 1 itself just can adjusting rotary speed for signal generator 6.
Nut 3 is screwed in one of them hole.
One end of hard straight little rod 4 is flexibly connected with nut 3, and the other end is connected with metal ring 5.
Introduce the method that circular standing wave generating means of the present utility model produces circular standing wave below:
Switch on power, and motor 1 is rotated.When motor 1 rotates, drive rosette 2 to rotate, make thus the nut 3 on rosette 2 also rotate thereupon.Nut 3 drives hard straight little rod 4 in perpendicular, to do moving up and down of some cycles, and simultaneously hard straight little rod 4 drives again metal ring rule in perpendicular to swing and produces vibration, produces thus circular standing wave.
In the utility model, because different holes is different from the distance between the center of circle, therefore, by nut 3 is screwed in different holes, nut 3 is to rotate with different off-centre operations on rosette 2, the amplitude that makes thus hard straight little rod 4 move up and down in perpendicular changes, and finally makes the circle difference in wave amplitude of generation.And amplitude is along with off-centre operation radius diminishes and diminishes.
In addition, in the utility model, the external DC current regulator power supply of motor 1, changes the rotating speed of motor by changing voltage and current, and when changing the rotating speed of motor 1, the number that produces standing wave is also different.
Further, at vibration source same frequency, with amplitude in the situation that, hard straight little rod is longer, and standing wave effect is more obvious.
Compared with prior art, adopt circular standing wave generating means of the present utility model to there is following beneficial effect:
(1) circular standing wave generating means of the present utility model can be used in and produces circular standing wave, has overcome thus and can only generate the problem of shear wave and compressional wave in prior art.
(2) circular standing wave generating means of the present utility model can change in wave amplitude by changing eccentric diameter of a circle, and having overcome thus the wave amplitude of staying generating in prior art can only be fixing problem.
(3) circular standing wave generating means of the present utility model, volume is small and exquisite, and inner structure is simple, is easy to carry.
In addition, can apparently draw other advantages and modification for the person of ordinary skill of the art.Therefore the utility model that, has more extensive areas is not limited to shown and described illustrating and exemplary embodiment here.Therefore,, in the situation that do not depart from the spirit and scope by the defined general utility model design of claim and equivalents thereof subsequently, can make various modifications to it.
Claims (7)
1. a circular standing wave generating means, is characterized in that this device comprises motor, rosette, nut, hard straight little rod, and metal ring; Wherein:
Rosette is connected with motor, and on rosette, has a plurality of holes different apart from the center of circle;
Nut is screwed in one of them hole;
One end of hard straight little rod is flexibly connected with nut, and the other end is connected with metal ring;
When motor rotates, drive successively rosette, nut, hard straight little rod motion, and finally by hard straight little rod, drive metal ring regular swing in perpendicular to produce vibration, produce thus circular standing wave.
2. circular standing wave generating means according to claim 1, wherein said motor is variable-speed motor.
3. circular standing wave generating means according to claim 2, wherein said device also comprises:
The signal generator being connected with motor, this signal generator is for regulating the rotating speed of motor.
4. according to the circular standing wave generating means described in claim 1-3 any one, wherein:
On rosette, the number in hole is 3, and is respectively 4.23mm with the distance in the center of circle, 8.05mm, 10.35mm.
5. according to the circular standing wave generating means described in claim 1-3 any one, wherein:
Nut is screwed in different holes, and nut is to rotate with different off-centre operations on rosette, and the amplitude that makes thus hard straight little rod move up and down in perpendicular changes, and finally makes the circle difference in wave amplitude of generation.
6. circular standing wave generating means according to claim 5, wherein:
The amplitude of circular standing wave is along with off-centre operation radius diminishes and diminishes.
7. circular standing wave generating means according to claim 2, wherein:
The external DC current regulator power supply of motor, changes the rotating speed of motor by changing voltage and current, when changing the rotating speed of motor, the number that produces standing wave is also different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320656209.4U CN203535864U (en) | 2013-10-23 | 2013-10-23 | A circular standing wave generating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320656209.4U CN203535864U (en) | 2013-10-23 | 2013-10-23 | A circular standing wave generating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203535864U true CN203535864U (en) | 2014-04-09 |
Family
ID=50422046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320656209.4U Expired - Fee Related CN203535864U (en) | 2013-10-23 | 2013-10-23 | A circular standing wave generating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203535864U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103559815A (en) * | 2013-10-23 | 2014-02-05 | 国家电网公司 | Round standing wave generator |
| CN109671335A (en) * | 2018-12-13 | 2019-04-23 | 齐齐哈尔大学 | A kind of hand-held standing wave instrument and demenstration method |
| CN109671336A (en) * | 2018-12-13 | 2019-04-23 | 齐齐哈尔大学 | A kind of double vibration source type standing wave instrument |
| CN110164265A (en) * | 2019-05-15 | 2019-08-23 | 河海大学 | A kind of vertical longitudinal wave stationary wave experiment measuring device and method |
-
2013
- 2013-10-23 CN CN201320656209.4U patent/CN203535864U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103559815A (en) * | 2013-10-23 | 2014-02-05 | 国家电网公司 | Round standing wave generator |
| CN109671335A (en) * | 2018-12-13 | 2019-04-23 | 齐齐哈尔大学 | A kind of hand-held standing wave instrument and demenstration method |
| CN109671336A (en) * | 2018-12-13 | 2019-04-23 | 齐齐哈尔大学 | A kind of double vibration source type standing wave instrument |
| CN110164265A (en) * | 2019-05-15 | 2019-08-23 | 河海大学 | A kind of vertical longitudinal wave stationary wave experiment measuring device and method |
| CN110164265B (en) * | 2019-05-15 | 2021-04-27 | 河海大学 | Vertical longitudinal wave standing wave experiment measurement device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203535864U (en) | A circular standing wave generating device | |
| CN103954428B (en) | A kind of omnidirectional annular wave simulator | |
| CN102314787A (en) | Novel standing wave demonstrating instrument | |
| CN103559815B (en) | Circular standing wave generating means | |
| CN203825896U (en) | Integrated standing wave demonstration instrument | |
| CN204010437U (en) | Standing wave demonstrating instrument | |
| CN201449683U (en) | A vibrating sound generating demonstrator | |
| CN205038874U (en) | Device for demonstrating energy transform | |
| CN205158741U (en) | Wind -force pendulum experiment appearance | |
| CN211604512U (en) | Teaching device for demonstrating seismic waveform and damage degree | |
| CN204348187U (en) | A kind of sound wave apparatus for demonstrating | |
| CN201489705U (en) | Plane geometric figure dynamic demonstrator | |
| CN202196530U (en) | Novel standing wave demonstration instrument | |
| Demircioglu et al. | Demonstrating the direction of angular velocity in circular motion | |
| CN201222320Y (en) | Magnetic field transmission instrument | |
| CN205158744U (en) | Sound wave driven magnetic suspension rotator demonstration appearance | |
| CN203882488U (en) | Simple harmonic motion and unit circle demonstration instrument | |
| CN206340242U (en) | Magnetic life audio-visual education programme tool | |
| CN203520726U (en) | Magnetic suspension wind wheel | |
| CN204667728U (en) | A kind of longitudinal wave demonstrator | |
| CN103680265B (en) | Rotating vector analytical demonstrator | |
| CN204680266U (en) | The teaching demonstration device at angle | |
| Horne et al. | Study of Wave Motion and Teaching Methods in Engineering Problem Solving Course | |
| CN208173078U (en) | A kind of raw electric sounding musical instrument electromagnetic induction demonstration instrument of magnetic for physics experiment teaching | |
| CN203941644U (en) | A kind of moving-magnetic type loudspeaker for teaching aid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140409 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |