CN107067904A - A set of demonstration air can transaudient and vacuum can not be transaudient experimental provision - Google Patents
A set of demonstration air can transaudient and vacuum can not be transaudient experimental provision Download PDFInfo
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- CN107067904A CN107067904A CN201710231112.1A CN201710231112A CN107067904A CN 107067904 A CN107067904 A CN 107067904A CN 201710231112 A CN201710231112 A CN 201710231112A CN 107067904 A CN107067904 A CN 107067904A
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- transaudient
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/14—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for acoustics
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Abstract
A set of demonstration air can transaudient and air can be transaudient experimental provision, the heavy-walled glass container A container of two independent good airproof performances is set（1）With B containers（2）, A containers are provided with the hand-operated valve being in communication with the outside（6）, the heavy wall guide pipeline of favorable sealing property is provided between A/B（5）, A is interior to hang " the light-operated acoustical generator of laser " a with fine rule（7）, B is interior to hang " acoustic control trigger scope " b with fine rule（8）, " Laser emission controller " C, C is separately set built with the Laser emission control assembly c being made up of LASER Discharge Tube and controlling switch K.Produce controllable sound with " the light-operated acoustical generator of laser ", the communication effect of sound shown by means of " acoustic control trigger scope ", will " sound can be propagated in atmosphere, and can not be propagated in a vacuum " this infrastest, effectively, clear, being demonstrated completely.
Description
Technical field
The invention belongs to physical experiment apparatus, refer specifically to a set of demonstration air can transaudient and vacuum can not be transaudient reality
Experiment device.
Background technology
In Physical Experiment, demonstration air can propagate sound and vacuum can not propagate sound, be one very basic
Experiment, but traditional laboratory facilities, are constantly present such-and-such flaw, for example, being using thick and heavy in old textbook
Glass bell jar, to cover a sound generator, this cover was both heavy, and encapsulation process is pretty troublesome；And sound generator, before this
Using alarm clock, the controllability of mechanical alarm clock is very poor；Radio was changed to later, experiment effect is also bad；Still later using wireless
Electrical remote control mode, and radio wave, had not both seen, had not heard again, and the visuality and confidence level to this experiment all bring bad shadow
Ring.
It is contemplated that, if designing a set of brand-new experiment using three big measures, it will make one scintillating.Measure
One, the means of sounding will be controlled, is changed to irradiate control with laser, will be a kind of substantial progress, its benefit has three：1. laser
Visible, 2. is disturbed by ambient light, and 3. operations are extremely simple also especially reliable.Measure two, acoustic control receiver is changed to use
Voice operated sensor is received, if there is the sound wave for being propagated through and, and receive triggering by sensor is amplified by chip circuit again, is then promoted
LED lamp group flashes, and is come with light display mode to check whether there is sound transmission.So do not exclusively novel, mainly
It is that of avoiding interference.Measure three, sound source portion and receiver part are connected with acoustic waveguide tube, so can more be embodied sound and led
The characteristic propagated in pipe.The present invention exactly opens one's minds according to such, devises a whole set of brand-new device, thus will
" sound can be propagated in atmosphere, and can not be propagated in a vacuum " this infrastest ", it is effective, clear, complete to be drilled
Show.
The content of the invention
In order to perfectly demonstrate " sound can be propagated in atmosphere, and can not be propagated in a vacuum " this experiment, this hair
It is bright to take following technical scheme：The heavy-walled glass container A container of two independent good airproof performances is set（1）With B containers（2）, A
Container is provided with the hand-operated valve being in communication with the outside（6）, the heavy wall guide pipeline of favorable sealing property is provided between A/B（5）, in A
" the light-operated acoustical generator of laser " a is hung with fine rule（7）, B is interior to hang " acoustic control trigger scope " b with fine rule（8）, separately set " laser hair
Penetrate controller " C, C is built with the Laser emission control assembly c being made up of LASER Discharge Tube and controlling switch K.
Operation principle and experimental demonstration process are as follows, step one, by opening at valve 6, generating laser C control
System switch K is pinned, and photoelectric tube G, G in the laser beam directive A of injection on a is excited light irradiation internal resistance and is drastically diminished, causes three
Pole pipe 9014 is turned on, and flip chip IC1 discharges the melody that it is stored, and melody is broadcasted by loudspeaker Y.The sound of broadcast is through conduit
5 propagate to B, and the sensor M on acoustic control trigger scope b can be made toggled, cause triode 9013 to turn on and cause display
Lamp group L1 ~ Ln light-emitting flash.
Step 2, external air exhauster is opened by valve 6（It is not drawn into accompanying drawing）Outwards extract air out, pumping Bi Ze shuts valve
Door, at this moment repeat step one, the photoelectric tube G allowed on the laser beam directive a in C triggers the light-operated transmitter a of laser, but a
The sound wave that loudspeaker Y is sent can not be traveled in B, because air is taken out in container A and container B（Or it is very dilute
It is thin）, sound wave, which passes the mark not come, is：Lamp group L1 ~ Ln on acoustic control trigger scope b can not flash！
Contrast experiment's step one and experimental procedure two, it is easy to obtain experiment conclusion：Air can be transaudient and vacuum can not be passed
Sound.
The beneficial effects of the invention are as follows：The light-operated acoustical generator of laser is dexterously make use of, conducting tube sound wave, acoustic control triggering is aobvious
Show that device is received, this laboratory facilities combined is effectively prevented external environmental light, ambient noise and experimentation is done
Disturb, and the cross jamming between acoustical generator and receiver two parts component.By " sound can be propagated in atmosphere, and can not
Propagate in a vacuum " this infrastest, it is effective, clear, complete to be demonstrated.
The present invention is further described with reference to the accompanying drawings and examples for brief description of the drawings.
Fig. 1 be the built-in different components that a long duct is connected closed container A and B, A in suspension " laser is light-operated
" acoustic control trigger scope " b is hung in acoustical generator " a, B.The schematic diagram that Fig. 2 is " Laser emission controller " C, C is Fig. 3.Fig. 4 is
The light-operated acoustical generator a of laser electrical schematic diagram.Fig. 5 is acoustic control trigger scope b electrical schematic diagram.
In figure, 1- container As, 2- container Bs, 3- valves Isosorbide-5-Nitrae-valve 2,5- long ducts, 6- manually-operated gates, the light-operated hair of 7- laser
Sound device（Component）A, 8- acoustic control trigger scope（Component）B, 9- Laser emission controller C, 71- photoelectric receiving diode G, 72-
LED light, 73- loudspeakers, 81- sound reception sensors, 82-LED display lamp groups, 91- LASER Discharge Tubes, 92- is controlled manually
Switch.
Embodiment
It is carried out in two steps using the experimental demonstration of this covering device.First, in Fig. 1,1 is closed glass container A, interior
It is hung with the light-operated acoustical generator of laser（Component）a（7）, when a is by Laser emission controller C（9）The laser beam that transmitting comes, photoelectricity connects
Receive diode G internal resistances immediately to diminish, cause triode 9014 to turn on, flip chip IC1 discharges the melody that it is stored, melody by
Loudspeaker Y is broadcasted.The sound of broadcast propagates in closed glass container B, B through conduit 5 and is hung with acoustic control trigger scope b,
The melody sound propagated and arrived can make the sensor M on acoustic control trigger scope b toggled, cause triode 9013 to turn on
And cause display lamp group L1 ~ Ln light-emitting flash.The Music Clip IC1 selectable ranges for being capable of sounding are very wide, select here
XD9651 chips.At this moment air is full of in two containers and conduit, it is demonstrated experimentally that sound can be propagated in atmosphere, sound transmission
The mark come over is L1 ~ Ln luminescence display.
Sound demonstration second step, external air exhauster is opened by valve 6（It is not drawn into accompanying drawing）Outwards extract air out, pumping is finished
Valve is then shut, at this moment repeat step one, the photoelectric tube G allowed on the laser beam directive a in C triggers the light-operated transmitter a of laser,
But the sound wave that a loudspeaker Y is sent can not be traveled in B, because air is taken out in container A and container B（Or it is non-
It is often thin）, sound wave, which passes the mark not come, is：Lamp group L1 ~ Ln on acoustic control trigger scope b can not flash！
Contrast experiment's step one and experimental procedure two, obtain experiment conclusion just naturally：Air can transaudient and vacuum not
Can be transaudient.
Claims (4)
1. a set of demonstration air can transaudient and vacuum can not be transaudient experimental provision, it is characterized in that：Set two it is independent
The heavy-walled glass container A container of good airproof performance（1）With B containers（2）, A containers are provided with the hand-operated valve being in communication with the outside（6）, A/B it
Between be provided with the heavy wall guide pipeline of favorable sealing property（5）, A is interior to hang " the light-operated acoustical generator of laser " a with fine rule（7）, B is interior to be used
Fine rule hangs " acoustic control trigger scope " b（8）, " Laser emission controller " C is separately set, C is built with by LASER Discharge Tube and control
Switch the Laser emission control assembly c that K is constituted.
2. a set of demonstration air according to claim 1 can transaudient and vacuum can not be transaudient experimental provision, it is special
Levying is：Generating laser C controlling switch K is pinned, photoelectric tube G, the G Stimulated Light in the laser beam directive A of injection on a is shone
Penetrate internal resistance drastically to diminish, cause triode 9014 to turn on, flip chip IC1 discharges the melody that it is stored, and melody is by loudspeaker Y
Broadcast.
3. a set of demonstration air according to claim 1 can transaudient and vacuum can not be transaudient experimental provision, it is special
Levying is：When there is sound to propagate into container B, sound can make the sensor M on acoustic control trigger scope b toggled, cause three
Pole pipe 9013 turns on and causes display lamp group L1 ~ Ln light-emitting flash.
4. a set of demonstration air according to claim 1 can transaudient and air can be transaudient experimental provision, its feature
It is：By the heavy wall guide pipeline of the favorable sealing property set between A/B（5）, can both demonstrate air can be transaudient, can drill again
Show that air can be transaudient, by the ingehious design of experimental method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710231112.1A CN107067904A (en) | 2017-05-09 | 2017-05-09 | A set of demonstration air can transaudient and vacuum can not be transaudient experimental provision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710231112.1A CN107067904A (en) | 2017-05-09 | 2017-05-09 | A set of demonstration air can transaudient and vacuum can not be transaudient experimental provision |
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| Publication Number | Publication Date |
|---|---|
| CN107067904A true CN107067904A (en) | 2017-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710231112.1A Pending CN107067904A (en) | 2017-05-09 | 2017-05-09 | A set of demonstration air can transaudient and vacuum can not be transaudient experimental provision |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2534642Y (en) * | 2002-04-05 | 2003-02-05 | 韩德君 | Inner ear type vacuum bell |
| CN101593446A (en) * | 2008-05-26 | 2009-12-02 | 徐超 | A kind of sound transmission teaching aid |
| CN101714305A (en) * | 2008-10-07 | 2010-05-26 | 许航 | Sound performance demonstration device |
| CN103489354A (en) * | 2013-10-23 | 2014-01-01 | 罗贤勇 | Vacuum self-made teaching tool unable to emit sound |
| CN203966403U (en) * | 2014-01-22 | 2014-11-26 | 杨俊伟 | The teaching demonstration device that a kind of vacuum is not transaudient |
| CN204614309U (en) * | 2015-04-25 | 2015-09-02 | 赵艳芳 | A kind of physics teaching sound propagation demonstrator |
| CN205665937U (en) * | 2016-03-30 | 2016-10-26 | 钟松珍 | Not transaudient teaching experiment device in vacuum |
| CN206148012U (en) * | 2016-07-31 | 2017-05-03 | 胡宸希 | Demonstration ware is propagated to vacuum sound |
-
2017
- 2017-05-09 CN CN201710231112.1A patent/CN107067904A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2534642Y (en) * | 2002-04-05 | 2003-02-05 | 韩德君 | Inner ear type vacuum bell |
| CN101593446A (en) * | 2008-05-26 | 2009-12-02 | 徐超 | A kind of sound transmission teaching aid |
| CN101714305A (en) * | 2008-10-07 | 2010-05-26 | 许航 | Sound performance demonstration device |
| CN103489354A (en) * | 2013-10-23 | 2014-01-01 | 罗贤勇 | Vacuum self-made teaching tool unable to emit sound |
| CN203966403U (en) * | 2014-01-22 | 2014-11-26 | 杨俊伟 | The teaching demonstration device that a kind of vacuum is not transaudient |
| CN204614309U (en) * | 2015-04-25 | 2015-09-02 | 赵艳芳 | A kind of physics teaching sound propagation demonstrator |
| CN205665937U (en) * | 2016-03-30 | 2016-10-26 | 钟松珍 | Not transaudient teaching experiment device in vacuum |
| CN206148012U (en) * | 2016-07-31 | 2017-05-03 | 胡宸希 | Demonstration ware is propagated to vacuum sound |
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Application publication date: 20170818 |