Three-Dimensional Mid-Air Acoustic Manipulation [Acoustic Levitation] (2014-) | Tokyo
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(2014/7/23) Here is Next Levitation Project! https://www.youtube.com/watch?v=NLgD3EtxwdY Three-Dimensional Mid-Air Acoustic Manipulation (2013,2014-) Yoichi Ochiai / 落合陽一(The University of Tokyo / 東京大学) Takayuki Hoshi / 星貴之(Nagoya Institute of Technology / 名古屋工業大学) Jun Rekimoto / 暦本純一 (The University of Tokyo / Sony CSL) http://96ochiai.ws/3DOFacoustic contact: ochyai_manage@orange-p.co.jp The essence of levitation technology is the countervailing of gravity. It is known that an ultrasound standing wave is capable of suspending small particles at its sound pressure nodes and, so far, this method has been used to levitate lightweight particles, small creatures, and water droplets. The acoustic axis of the ultrasound beam in these previous studies was parallel to the gravitational force, and the levitated objects were manipulated along the fixed axis (i.e. one-dimensionally) by controlling the phases or frequencies of bolted Langevin-type transducers. In the present study, we considered extended acoustic manipulation whereby millimetre-sized particles were levitated and moved three-dimensionally by localised ultrasonic standing waves, which were generated by ultrasonic phased arrays. Our manipulation system has two original features. One is the direction of the ultrasound beam, which is arbitrary because the force acting toward its centre is also utilised. The other is the manipulation principle by which a localised standing wave is generated at an arbitrary position and moved three-dimensionally by opposed and ultrasonic phased arrays. We experimentally confirmed that various materials could be manipulated by our proposed method. Yoichi Ochiai, Takayuki Hoshi, Jun Rekimoto: Three-dimensional Mid-air Acoustic Manipulation by Ultrasonic Phased Arrays arXiv:1312.4006 [physics.class-ph] http://arxiv.org/abs/1312.4006 @ARTICLE{2013arXiv1312.4006O, author = {{Ochiai}, Y. and {Hoshi}, T. and {Rekimoto}, J.}, title = "{Three-dimensional Mid-air Acoustic Manipulation by Ultrasonic Phased Arrays}", journal = {ArXiv e-prints}, archivePrefix = "arXiv", eprint = {1312.4006}, primaryClass = "physics.class-ph", keywords = {Physics - Classical Physics, H.5.2}, year = 2013, month = dec, adsurl = {http://adsabs.harvard.edu/abs/2013arXiv1312.4006O}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } Music from http://classical-sound.seesaa.net
Comments
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東京大学の研究チームが、超音波で物体を浮かせ、3次元的に動かす手法を開発した。
さまざまな物体を動かすデモンストレーション動画が話題だ。動画まとめサイト。
この動画から幾つかのリンクをへてあなたの動画にたどり着いた、
61才のSFファンだ。
動画まとめサイトのコメントが余りにも「くそ」が多くまた私の印象と
かけ離れているので一文をここに残したくなった。
科学の解らぬたわごとだと思ったら消してくれ。
英語は読めないし英語を勉強もしたくない男なのでここのコメントは
「パス」。
どの画僧を見ても私しには3次元座標値に物体を固定しているようにしかみえない。
移動は音響の焦点が移動しているだけで物体は焦点に固定されている。
決して持ち上げているのではない。
焦点の掌握力が十分強いので持ち上げていると言っていいのではと考えると
技術の体系を間違えると思う。これが動画を見た私の印象だ。
物体が重力より強い音圧に吹上がり音圧の焦点で均衡する=「音波浮揚」技術?
画像のなかでは全てグラム単位の世界だ。実用技術として使い物になるには
最低キログラム単位の制御が必要だ。音波にそこまでの力が在るのか?
今のところそこまでの音圧は物体の破壊にしか作用していない。
従って「音波浮揚」技術は重力のない空間の制御技術だと思う。
音響浮揚装置を無重力下の人体や道具の位置固定装置及び移動装置としてつかえないか?。
無重力下の宇宙船内における人体や道具の位置固定をして上下左右の安定した移動が
可能になりそうだと考えるがどうだろうか。
人が宇宙で生きるには空気が必要です。重力がない宇宙船という閉鎖空間は音響浮揚の
制御に最適な環境ではないでしょうか?。
無重力下で
例えば天井から部屋全体に音圧かけて置けば、
室内の移動動線に常に一定方向の音圧をかければ、
反重力や重力発生機なんて必要なく今すぐにも
安定した作業空間が出来るのではないか。
実証実験として様々な音響浮揚条件を設定したドールハウスを作り、宇宙船内で
浮遊させ上下左右に回転させたり、床に投げつけて見て、音響浮揚下にある
人形や細々したアイテムの振る舞いを録画してみればと考えます。
重力下でキログラム単位の制御開発に取り組むよりは実りある成果が
得られるのでは・・・ -
I bet playing with this would never get old. What would it do with a LIT match?
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im 16 years old and for the past months ive been working on how to convert sound frequencies into usable energy... my goal is to accomplish what tesla took to his grave but im running into some problems. if anyone with advanced knowledge in engineering or any creative geniuses would like to help please reply and i will DM you. Im not in this for the money so if youre questioning why i would share my ideas it is because i believe i can change the world and that it is my duty as a human to further propel our species
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because you were projecting the frequency 360 Degrees around a mass it creates a neutral antinode amongst the whole Mass, very simply I'm going to explain to everybody how Antigravity works,... this is the most perfect definition of it but this can be achieved very simply for ANYTHING! with a wire oscillating at the same frequency a neutral wave would consist of, for whatever it is that you wish to levitate. gravity works as a wind that blows through the planet think of the whole universe as pressure zones and the masses that take up these pressure zones the pressure flows equal to the masses themselves, if a neutral frequency for a standing wave for whatever mass it is you wish to levitate can be superimposed at the equator ,it will seem more dense thus more gravity will be attracted to it,
this standing wave with the proper resonant frequency you can establish a neutral neutral over the entire Mass established at the equator oscillating 360 Degrees around the mass Antigravity is extremely simple it is just an wire or ring that establishes around an object a neutral - neutral basically an antidote that is consistent of the whole Mass, it is surface tension that can be otherwise removed with the proper wave reflection and propagation,,,,wire and proper frequency at EQUATOR , procession of a gyroscope happens because the frequency is getting squeezed because the mass is being stretched therefore a somewhat neutral frequency for the standing wave of the gyroscope is partly being achieved.
but such forces can be implied onto anything preferably things that are asymmetrical just with a wire at the equator, -
Its called SONIC LEVITATION!!!
The Nephilims were the FIRST to use this technology to build ptramids & move massive tons of MEGA STONES.. -
Tractor beams: Not in our lifetime you say? Guess again!
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Hi, I'm a producer for INSIDER. I was wondering if I could have permission to use some of this footage for a story I'm working on about the awesome levitation shown here. Would of course provide full credit. Shoot me an email at iphillips@thisisinsider.com to discuss further. Thanks!
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What about: instead of air molecules use transparent led lights with me antenna in a 3d cubic (or hexagonal) grid. Instead of standing sound waves use EM waves.... Nodal points will control intensity and maybe can use frequency modulation for colour. Can then probably transform music into EM waves and see what it comes out... Pretty please?
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This technology seems like it could be used as a weapon? If you focus the energy into a small space it could disrupt vital organs?
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You should levitate a lit match
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I would like to know thae sound that those waves make and if it varies to make every figure. It look like a really cool experiment though.
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How are the low pressure regions being moved? What input is being changed on the ultrasonic speakers so that they can modify the locations of the low pressure regions?
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Is it possible to perform in home conditions?
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So Interesting ! Amazing !
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I see the use for a 3D printer
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holy shit! never seen this before, i'm mind blown! >_<
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is the wiring of the speakers parallel or series?
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please make a video on how u manipulated the focal point