CN204215630U - Sound wave visible presentations instrument - Google Patents
Sound wave visible presentations instrument Download PDFInfo
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- CN204215630U CN204215630U CN201420546229.0U CN201420546229U CN204215630U CN 204215630 U CN204215630 U CN 204215630U CN 201420546229 U CN201420546229 U CN 201420546229U CN 204215630 U CN204215630 U CN 204215630U
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- sound wave
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- reflecting piece
- vibration film
- wave visible
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Abstract
The utility model belongs to science popularization and shows apparatus field, is specifically related to a kind ofly conveniently clearly sound is converted to the sound wave visible presentations instrument of visible waveform.The utility model comprises the sound source receiving end be at least made up of the vibration film tightening flattening shape layout, and the face place, side of vibration film is pasted with reflecting piece; Described sound wave visible presentations instrument also comprises for carrying out sharp light-struck source ends and the display end for display waveform to reflecting piece, described display end is long afterglow reflecting assembly, and the light receiving surface of display end is positioned at the laser reflection path place of reflecting piece and this light receiving surface reflecting piece can make rectilinear motion along assigned direction or rotational action relatively.The utility model is simple for structure and reasonable, can facilitate and clearly sound is converted to visible waveform demonstration directly perceived.
Description
Technical field
The utility model belongs to science popularization and shows apparatus field, is specifically related to a kind ofly conveniently clearly sound is converted to the sound wave visible presentations instrument of visible waveform.
Background technology
As everyone knows, sound is produced by object vibration, and sound is that sound wave propagates the motion formed by any material, is sightless.Consider and demonstrate needs intuitively, in current physics teaching, gather sound often through microphone, by electrical way switching signal, and on oscillograph, carry out waveform demonstration again after carrying out signal amplification with amplifier, to reach the visible object of sound wave.Above-mentioned play configuration is complicated and meticulous, operates strongly professional, large by experimental situation limitation, obviously can not use as the daily demonstration equipment of people.
Along with popularizing of scientific and technological exhibition, in the showpiece design of Jin Liangnian science and technology center, in exhibition article, start to engender being easy to operation and the sound wave apparatus for demonstrating possessing certain demonstrating effect.The design concept of such exhibition article and method utilize mechanical hook-up to complete structural design, and utilize eye illusion to observe sound waveform.Usual structure mainly comprises rotating cylinder, and cylinder surface is pasted with chequered with black and white light reflecting membrane, the bearing of trend parallel roller axis of its black and white, and in cylinder front, six roots of sensation guitar string is arranged in vertical cylinder axis direction more simultaneously.During actual presentation, by fingering a stringed instrument, by the yo-yo effect of sound wave and the persistence of vision of human eye, people, when being observed the cylinder surface of rotation by string, can be observed similar sine-shaped illusion phenomenon, thus make sound wave be demonstrated out.Said structure no doubt possesses the blank of partial sound display, but, if say its can clear and intuitive complete for acoustic waveform demonstration out, this remains unapproachable.Trace it to its cause, be that the rotational action of cylinder all needs operator's manual operation on the one hand, there is rotating speed uneven phenomenon unavoidably.And the more important thing is, even if drum rotation speed is balanced, after fingering a stringed instrument and making its vibration sounding, observer also only when very careful notice observation, could only with the waveform display situation being observed visually cylinder surface place, its display effect is very not obvious, and this is the inherent shortcoming that this body structure unavoidably brings.How to seek a kind of structure simple and rational sound demonstration device, can while its operation terseness of guarantee, significantly promoting the visible presentations effect of sound, is the technical barrier that this area is urgently to be resolved hurrily in recent years.
Summary of the invention
The purpose of this utility model is for overcoming above-mentioned the deficiencies in the prior art, and provide one simple for structure and rational sound wave visible presentations instrument, can facilitate and clearly sound is converted to visible waveform demonstration directly perceived, its demonstrating effect is splendid.
For achieving the above object, the utility model have employed following technical scheme:
Sound wave visible presentations instrument, comprise the sound source receiving end be at least made up of the vibration film tightening flattening shape layout, the face place, side of vibration film is pasted with reflecting piece; Described sound wave visible presentations instrument also comprises for carrying out sharp light-struck source ends and the display end for display waveform to reflecting piece, described display end is long afterglow reflecting assembly, and the light receiving surface of display end is positioned at the laser reflection path place of reflecting piece and this light receiving surface reflecting piece can make rectilinear motion along assigned direction or rotational action relatively.
Described sound source receiving end also comprises the cylinder that quiets down that profile is straight collar shape, the bottom mouth of pipe of the described cylinder that quiets down is closed coated with vibration film, the open top end of cylinder of quieting down is formed propagandas directed to communicate end, and reflecting piece profile is diametrically less than the Thin Disk shape of an internal diameter that quiets down and arranges with an axis coaxle that quiets down.
Described vibration film is silica gel vibration film; The opposite side face of the reflecting piece positioned opposite of vibration film forms the mating surface coordinating the cylinder that quiets down, and vibration film is withheld with film trim ring and is fixed in an outer wall place, bottom that quiets down.
Described reflecting piece is plane mirror, and between the laser incident path of reflecting piece and laser reflection path, angle is 150 °.
Described display end comprise rolling stand and be fixed on rolling stand can along the cylinder of its support axial rotation, cylinder outer tube wall circumference lays long afterglow light reflecting membrane, and long afterglow light reflecting membrane face forms the light receiving surface of aforementioned display end.
Described display end also comprises the DC speed-reducing that index drum rotates with set speed.
Described source ends is red laser pen.
Described sound wave visible presentations instrument also comprises the exhibition booth for affixed arrangement sound source receiving end, source ends and display end, described exhibition booth is also provided with the delay switch for controlling source ends unlatching and time-delay closing and display end action launching and time delay stopping.
Described delay switch is delay-action push-button switch or time delay time delay inductive switch, and the time delay timeliness of this delay switch is 1 ~ 2 minute.
The beneficial effects of the utility model are:
1) many defects such as the unintelligible and operability of visual effect that traditional structure brings is not strong, have been abandoned.On the one hand with vibration film structure, sound is converted to acoustic vibration, so that subsequent operation.On the other hand, with the reflecting piece on vibration film, irradiated by the laser of source ends and be arranged in the movable long afterglow reflecting assembly at reflecting piece reflection paths place in advance, thus achieving the connected effect between vibration component and reflecting piece.Once reflecting piece vibrates, now its laser path reflected certainly will change, and then causes optical receiving end received light spot region position, long afterglow reflecting assembly place to occur change.Along with the continuous reflecting piece relatively of above-mentioned optical receiving end relatively rotates and even rectilinear motion, this change is remembered into curved lines by long afterglow reflecting assembly and by complete and demonstrate out clearly, is finally reached the demonstration purpose of " observable sound " this basic concept.
The utility model is easy for operation, and demonstrating sound wave waveform effect is obvious, is applicable to showing for the science popularization of sound class showpiece in science and technology center.Its structural design is simple, and easily realize processing, cost is low; The long afterglow reflecting assembly of design, constantly can receive reflects laser and show the track of luminous point movement, namely obtain sound waveform, its waveform demonstrating effect is splendid.
2), the layout of the cylinder that quiets down, not only specialize achieve vibration film tighten affixed object, simultaneously, after the cylinder that quiets down of straight collar shape closes one section with vibration film, namely define the semi-closed structure of similar tubbiness.Now, once internally propaganda directed to communicate along its unique openend, sound wave is effectively constrained in quiet down in cylinder, and constantly clashes into vibration film, thus promotes the sound wave storage effect of vibration film greatly.Obvious, by the vibration film that sound effective value is so strong, coordinate the reflecting piece that on it, bore is smaller, reflecting piece Oscillation Amplitude is larger.And reflecting piece Oscillation Amplitude is larger, the movement range of its laser reflected is also larger, and demonstrating effect is also just stronger.
3), actual when using, vibration film is silica gel vibration film, its longer service life and vibrating effect is better.Meanwhile, vibration film is fixed in film trim ring the cylinder place that quiets down, to ensure that vibration film is for the affixed effect quieted down between an end; Certainly, also can use other tightly bundle or bonds during practical operation, be as the criterion to reach vibration film and fix object relative to the flattening of the bobbin end that quiets down, just repeat no more herein.
4), display end, as the reflected light receiving end of reflecting piece, shaping most important for final demonstrating effect.The utility model, with the revolution action of cylinder, coordinates the long afterglow light reflecting membrane of the cylinder outer tube wall that is laid in; Once cylinder produces rotational action, long afterglow light reflecting membrane can be driven to produce and rotate, now, the light reflection at reflecting piece place, to long afterglow light reflecting membrane, stores light memory function by long afterglow light reflecting membrane, finally realizes waveform demonstration purpose.The effect of DC speed-reducing, further can ensure the uniformity consistency of cylinder rotational action, with the waveform demonstrating effect of hoisting drum surface long afterglow light reflecting membrane.
5), as photoelectric device, relative position is to each other particularly important; And the layout of exhibition booth, be then conducive to the stable constancy realizing relative position between above-mentioned each parts.In addition, Energy control also considers economize energy problem, design have exhibitor staff close to and connect delay switch time, can close for time delay 1-2 minute, thus no one near time automatic cut-off power, the low and reliable and stable work of its energy consumption.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of sound source receiving end.
Illustrate each label and each parts corresponding relation of the present utility model is as follows:
10-sound source receiving end
11-vibration film 12-reflecting piece 13-quiets down a 14-film trim ring
20-source ends 30-display end
31-rolling stand 32-cylinder 33-long afterglow light reflecting membrane 34-DC speed-reducing
40-exhibition booth 41-delay switch
Embodiment
For ease of understanding, combining diagram herein and setting forth further below specific works structure of the present utility model and motion flow work:
One, specifically structure is implemented:
1), each component design parameters of sound source receiving end 10 and method:
The cylinder 13 that quiets down adopts plexi-glass tubular to make, and is of a size of external diameter φ 12cm, long 15cm, thick 3mm; Upper and lower mouth of pipe Edge Blend angle.Lower nozzle covers with the transparent silica gel vibration film of 0.2mm, requires to tighten open and flat layout, and is fixedly clamped to collect parts in the outer ring, cylinder 13 bottom that quiets down.Then sticking thickness in the center of open and flat silica gel vibration film is 2mm, and diameter is the reflective plane mirror of φ 3cm, to form aforementioned reflecting piece 12.
2), cylinder 32 design parameter
Cylinder 32 φ 20cm, long 20cm, the plexi-glass tubular of thick 3mm, the circular thickness of the upper and lower mouth of pipe is that the poly (methyl methacrylate) plate of 3mm is adhesively fixed.Rotation axis adopts plexi-glass tubular run through the poly (methyl methacrylate) plate axis at upper and lower mouth of pipe place and be bonded to each other.Rotation axis lower end connects 12V DC speed-reducing 34.Regulation voltage source can adjust a rotating speed.
Cylinder 32 outer tube wall sticks long afterglow light reflecting membrane 33, to utilize it to store light memory function, reaches waveform display effect when reflecting piece 12 place is reflective to be irradiated.
Cylinder 32 installation site can be vertically mounted on exhibition booth 40; Can certainly be tilted mounting arrangements, to see sound waveform by a larger margin, uses be as the criterion with reality.
3), source ends 20 is installed
Red laser pen is fixed on below exhibition booth 40, from slanting in laser beam to the bottom reflecting piece 12 of the cylinder 13 that quiets down in the heart immediately below the cylinder 13 that quiets down.Incident angle at 75 ° as well.
Illustrate: red laser pen selected by laser pen, its red laser sent is easier to by naked eyes vision capture.Source ends 20 power supply can realize 1.5V or 3V with the step-down of switch DC stabilized voltage supply.
4), DC speed-reducing 34
12V DC speed-reducing is selected to be fixed in exhibition booth 40, its rotating shaft affixed cylinder 32 rotation axis.The voltage source of DC speed-reducing 34 adopts the Switching Power Supply (+5V ,+12V 5A) on market.
Two, method of operating
When exhibitor staff operates, first press delay switch 41 to switch on power, in the reflecting piece 12 of source ends 20 luminescence oblique fire bottom the cylinder 13 that quiets down, reflex on cylinder 32 outer tube wall of the rotation driven by DC speed-reducing 34 through reflecting piece 12, wherein incident angle and reflection angle are all 75 °, incident ray and reflected ray angle 150 °; By being arranged in the long afterglow light reflecting membrane 33 at cylinder 32 outer tube wall place in advance, the straight line that a horizontal red laser point is linked to be can be observed clearly.
After this, exhibitor staff's mouth is aimed at the openend saying cylinder 13 and also namely to be propagandaed directed to communicate end, propagandas directed to communicate loudly.Quiet down and locate silica gel vibration film bottom cylinder 13 and vibrate, reflecting piece 12 is vibrated thereupon, time on the long afterglow light reflecting membrane 33 showing action, is red laser point and moves.Silica gel vibration film and reflecting piece 12 constantly action, long afterglow light reflecting membrane 33 constantly stores light and records the luminous point motion track caught, and now namely exhibitor staff's naked eyes can be observed cylinder 32 outer tube wall is not propagandaed directed to communicate clearly person's sound waveform.
Flatten as the science popularization of electroacoustic class, the utility model structural design is simple, reliable and stable work, is easy to processing and to make use cost low.The hot spot that red laser reflects is easy to by the clear seizure of naked eyes, the vibration reflection effect of reflecting piece 12 is also constantly amplified by the unitized construction of quiet down cylinder 13 and vibration film 11, cylinder 32 velocity of rotation is adjustable and rotating speed is even, long afterglow light reflecting membrane 33 to store optical recording effect extremely strong, thus show to exhibitor staff the waveform demonstrating effect that splendid sound produces.Said structure effectively achieves the visualization of sound, finally clear and complete the bandwagon effect of " observable sound " this science popularization phenomenon intuitively.
Claims (9)
1. a sound wave visible presentations instrument, it is characterized in that: comprise the sound source receiving end (10) be at least made up of the vibration film (11) tightening flattening shape layout, the face place, side of vibration film (10) is pasted with reflecting piece (12); Described sound wave visible presentations instrument also comprises for carrying out sharp light-struck source ends (20) and the display end (30) for display waveform to reflecting piece (12), described display end (30) is long afterglow reflecting assembly, and the light receiving surface of display end (30) is positioned at the laser reflection path place of reflecting piece (12) and this light receiving surface reflecting piece (12) can make rectilinear motion along assigned direction or rotational action relatively.
2. sound wave visible presentations instrument according to claim 1, it is characterized in that: described sound source receiving end (10) also comprises the cylinder that quiets down (13) that profile is straight collar shape, the bottom mouth of pipe of the described cylinder that quiets down (13) is closed coated with vibration film (11), the open top end of cylinder (13) of quieting down is formed propagandas directed to communicate end, and reflecting piece (12) profile is diametrically less than the Thin Disk shape of the cylinder that quiets down (13) internal diameter and arranges with the cylinder that quiets down (13) axis coaxle.
3. sound wave visible presentations instrument according to claim 2, is characterized in that: described vibration film (11) is silica gel vibration film; The opposite side face of the reflecting piece positioned opposite (12) of vibration film (11) forms cooperation and to quiet down the mating surface of cylinder (13), and vibration film (11) is withheld with film trim ring (14) and is fixed in outer wall place, the cylinder that quiets down (13) bottom.
4. the sound wave visible presentations instrument according to claim 1 or 2 or 3, is characterized in that: described reflecting piece (12) is plane mirror, and between the laser incident path of reflecting piece (12) and laser reflection path, angle is 150 °.
5. the sound wave visible presentations instrument according to claim 1 or 2 or 3, it is characterized in that: described display end (30) comprise rolling stand (31) and be fixed on rolling stand (31) can along the cylinder of its support axial rotation (32), cylinder (32) outer tube wall circumference lays long afterglow light reflecting membrane (33), and long afterglow light reflecting membrane (33) face forms the light receiving surface of aforementioned display end (30).
6. sound wave visible presentations instrument according to claim 5, is characterized in that: described display end (30) also comprises the DC speed-reducing (34) that index drum (32) rotates with set speed.
7. the sound wave visible presentations instrument according to claim 1 or 2 or 3, is characterized in that: described source ends (20) is red laser pen.
8. the sound wave visible presentations instrument according to claim 1 or 2 or 3, it is characterized in that: described sound wave visible presentations instrument also comprises the exhibition booth (40) for affixed arrangement sound source receiving end (10), source ends (20) and display end (30), described exhibition booth (40) are also provided with and open and the delay switch (41) of time-delay closing and display end (30) action launching and time delay stopping for controlling source ends (20).
9. sound wave visible presentations instrument according to claim 8, is characterized in that: described delay switch (41) is delay-action push-button switch or time delay inductive switch, and the time delay timeliness of this delay switch (41) is 1 ~ 2 minute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420546229.0U CN204215630U (en) | 2014-09-22 | 2014-09-22 | Sound wave visible presentations instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420546229.0U CN204215630U (en) | 2014-09-22 | 2014-09-22 | Sound wave visible presentations instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204215630U true CN204215630U (en) | 2015-03-18 |
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ID=52984282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420546229.0U Expired - Fee Related CN204215630U (en) | 2014-09-22 | 2014-09-22 | Sound wave visible presentations instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204215630U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114419965A (en) * | 2022-01-14 | 2022-04-29 | 特斯联科技集团有限公司 | Sound wave visual interaction device |
-
2014
- 2014-09-22 CN CN201420546229.0U patent/CN204215630U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114419965A (en) * | 2022-01-14 | 2022-04-29 | 特斯联科技集团有限公司 | Sound wave visual interaction device |
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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: 20150318 Termination date: 20150922 |
|
| EXPY | Termination of patent right or utility model |