CN206210199U - Resonance demonstration instrument - Google Patents
Resonance demonstration instrument Download PDFInfo
- Publication number
- CN206210199U CN206210199U CN201620989185.8U CN201620989185U CN206210199U CN 206210199 U CN206210199 U CN 206210199U CN 201620989185 U CN201620989185 U CN 201620989185U CN 206210199 U CN206210199 U CN 206210199U
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- coil paper
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- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
The utility model discloses a kind of resonance demonstration instrument, including upper spring (2), lower spring (7), coil paper (4) and motor (9), one end of the upper spring (2) is connected with support bar (1), the other end of the support bar (1) is fixed on wall, the other end of the upper spring (2) is connected with annulus (5), a cross bar (11) is inserted with the annulus (5), one end of the cross bar (11) is provided with pen, the other end is hung with counterweight (6), the bottom of the annulus (5) is connected with one end of the lower spring (7), the other end of the lower spring (7) is connected with pull bar (8), the pull bar (8) is connected with the motor (9), the coil paper (4) is placed on spool (3), the coil paper (4) is generally aligned in the same plane with the nib of the pen.The utility model can vivid demonstrating resonance phenomenon.
Description
Technical field
The utility model is related to a kind of Physical Experiment utensil, is specifically related to a kind of resonance demonstration instrument.
Background technology
Vibration is a kind of phenomenon of universe generally existing, is totally divided into macroscopic vibrations (such as earthquake, tsunami) and microscopic vibration
(warm-up movement of elementary particle, Brownian movement).Some vibrations possess the wavelength and frequency of comparing fixation, and some vibrations are not then solid
Fixed wavelength and frequency.Two vibration frequency identical objects, can allow another object to produce during one of object vibration
The vibration of raw same frequency, this phenomenon is called resonance.Resonant frequency is the CF of an object, the object under this frequency
Done with bigger amplitude than other frequencies and vibrated；These CFs are referred to as resonant frequency.Under resonant frequency, the week of very little
Phase vibration just can produce very big vibration.Quality, shape, hardness of resonant frequency and object etc. have relation.At present in teaching
Lack a kind of demonstrator of vivid demonstrating resonance phenomenon.
Utility model content
For the defect of prior art, the utility model provides a kind of resonance demonstration instrument.
A kind of resonance demonstration instrument, including upper spring 2, lower spring 7, coil paper 4 and motor 9, one end and the branch of the upper spring 2
Strut 1 is connected, and the other end of the support bar 1 is fixed on wall, and the other end of the upper spring 2 is connected with annulus 5, described
A cross bar 11 is inserted with annulus 5, one end of the cross bar 11 is provided with pen, and the other end is hung with counterweight 6, the bottom of the annulus 5
End is connected with one end of the lower spring 7, and the other end of the lower spring 7 is connected with pull bar 8, the pull bar 8 and the motor 9
Connection, the coil paper 4 is placed on spool 3, and the coil paper 4 is generally aligned in the same plane with the nib of the pen.
The beneficial effects of the utility model are：Overall structure is simple, low cost, can vivid demonstrating resonance and mass of object and
The relation of extraneous frequency, can simultaneously demonstrate the synthesis of motion.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model demonstrator.
Specific embodiment
To enable above-mentioned purpose of the present utility model, feature and advantage more obvious understandable, below in conjunction with the accompanying drawings to this
The specific embodiment of utility model is described in detail, and incites somebody to action above and other purpose of the present utility model, feature and advantage
Become apparent from.Identical reference indicates identical part in whole accompanying drawings.Not deliberately accompanying drawing drawn to scale, emphasis
It is that purport of the present utility model is shown.
As shown in figure 1, a kind of resonance demonstration instrument, including upper spring 2, lower spring 7, coil paper 4 and motor 9, the upper spring 2
One end be connected with support bar 1, the other end of the support bar 1 is fixed on wall, the other end and annulus of the upper spring 2
5 are connected, and a cross bar 11 is inserted with the annulus 5, and one end of the cross bar 11 is provided with pen, and the other end is hung with counterweight 6, described
The bottom of annulus 5 is connected with one end of the lower spring 7, and the other end of the lower spring 7 is connected with pull bar 8, the pull bar 8 with
The motor 9 is connected, and the coil paper 4 is placed on spool 3, and the coil paper 4 is generally aligned in the same plane with the nib of the pen.
In the utility model, motor 9 is adjustable speed motor, and the upper and lower motion of pull bar 8, pull bar 8 can be driven by motor 9
It is further to drive upper spring 2, lower spring 7, counterweight 6, annulus 5, cross bar 11 and pen vibration, by pulling dynamic coil paper 4 in experiment
Paper 11 move right, pen moves up and down, such pen just can be drawn on paper 11 represent an amplitude figure, while the figure
Shape can reflect the motion synthesized by two kinds of different motions.
Experiment 1：Change resonant frequency by changing mass of object, the rotating speed of motor 9 keeps constant, gradually increases counterweight 6
Quality, can be found that the amplitude of figure on paper 11 is maximum in a certain quality, now system reaches resonance, and weight is further added by afterwards
Code instruction, amplitude diminishes on the contrary, and the experiment image demonstrates influence of the quality for resonant frequency.
Experiment 2：Resonance is reached by changing motor speed, keeps counterbalance mass constant, the speed of motor 9 is gradually increased
Plus, at this moment the amplitude of figure increases therewith on paper 11, and when the rotating speed of motor 9 reaches a certain rotating speed, amplitude is maximum, reaches altogether
Shake, if being hereafter further added by the rotating speed of motor 9, amplitude reduces on the contrary, this experiment image demonstrates resonant frequency for a specific frequency
The relation of rate, amplitude and extraneous frequency.
Figure on paper 11 is synthesized jointly by the up and down motion of nib and the horizontal movement of paper 11, therefore, the demonstration
Instrument can also simultaneously cover up the synthesis of motion.
Elaborate many details in order to fully understand the utility model in the above description.But above description
Only it is preferred embodiment of the present utility model, the utility model can be with much next different from other manner described here
Implement, therefore the utility model is not limited by specific implementation disclosed above.Any those skilled in the art exist simultaneously
Do not depart under technical solutions of the utility model ambit, all the methods and techniques content using the disclosure above is new to this practicality
Type technical scheme makes many possible variations and modification, or the Equivalent embodiments for being revised as equivalent variations.It is every without departing from this
The content of utility model technical scheme, any simply repaiies according to technical spirit of the present utility model to made for any of the above embodiments
Change, equivalent variations and modification, still fall within the range of technical solutions of the utility model protection.
Claims (1)
1. a kind of resonance demonstration instrument, it is characterised in that described including upper spring (2), lower spring (7), coil paper (4) and motor (9)
One end of upper spring (2) is connected with support bar (1), and the other end of the support bar (1) is fixed on wall, the upper spring
(2) the other end is connected with annulus (5), and a cross bar (11) is inserted with the annulus (5), and one end of the cross bar (11) is provided with
Pen, the other end is hung with counterweight (6), and the bottom of the annulus (5) is connected with one end of the lower spring (7), the lower spring
(7) the other end is connected with pull bar (8), and the pull bar (8) is connected with the motor (9), and the coil paper (4) is placed on spool (3)
On, the coil paper (4) is generally aligned in the same plane with the nib of the pen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620989185.8U CN206210199U (en) | 2016-08-30 | 2016-08-30 | Resonance demonstration instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620989185.8U CN206210199U (en) | 2016-08-30 | 2016-08-30 | Resonance demonstration instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206210199U true CN206210199U (en) | 2017-05-31 |
Family
ID=58759412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620989185.8U Expired - Fee Related CN206210199U (en) | 2016-08-30 | 2016-08-30 | Resonance demonstration instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206210199U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108648562A (en) * | 2018-05-25 | 2018-10-12 | 日照职业技术学院 | A kind of music rhythm training tool |
| CN113096478A (en) * | 2021-04-13 | 2021-07-09 | 新能职业培训学校(天津)有限公司 | Resonance mechanism simulation teaching aid |
-
2016
- 2016-08-30 CN CN201620989185.8U patent/CN206210199U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108648562A (en) * | 2018-05-25 | 2018-10-12 | 日照职业技术学院 | A kind of music rhythm training tool |
| CN113096478A (en) * | 2021-04-13 | 2021-07-09 | 新能职业培训学校(天津)有限公司 | Resonance mechanism simulation teaching aid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170531 Termination date: 20180830 |