Wow. Pretty crazy. Makes me wish I were a young engineer, instead of a guy almost ready for retirement. But this gives me a great idea for what I might do once I am retired.
Its not to late yet. I started the engineering university the year I filled 40. And I was sure that I was going to be the oldest in class. I was not. No the oldest person in my is was 77 years old. He did not dolt for a career, but to keep his memory working. He did not do the final exam to get the completion of the course because he do not want to work as an engineer. In stead he started down the next five year program....
This is not the common project you can find on youtube, but this is an IMPRESSIVE project with a lot of work and a lot of theory behind. Congratulation for what you made and thank you so much to shared it! I don't think, by reading comments that people understood how much work you invested to realize this project/video.
My god, I don't know how old this video is but I wanted to make this/these back in 1994-95 (back then there was no Arduino or raspberry pie boards!) but my version was a cube with all of the transducers pointing inwards and to me, I was trying to think how a holideck would work and how to make it and this is it, now thanks to this guy and this fantastic video we might have them soon!! Please keep us informed! Take care and have a great day all!
That's what brought me here, I'm interested in the idea of using ultrasound for haptic feedback in VR. I envision something similar to your cube, six panels all facing the user from every axis, generating... whatever. Rain, wind, acceleration and g-forces for flying and racing sims, ground textures from the floor panel like grass, a rug, maybe water--imagine playing Kayak VR: Mirage and being able to reach down and dangle your hands in the water. The video title mentions haptics but the actual video, disappointingly, only focuses on levitation.
This is fantastic! You cover a lot of technologies from printed circuit boards, soldering, downloading and installing software, construction and testing etc. I think you should have gone slower. I think you covered every step that's necessary. But only 11 minutes for this very big complex project is maybe not enough. This is fantastic and amazing and very professional. Thank you
This is sick bro, maybe a little work to integrate the power and control section in the same elecronic board would be needed, but right now the result it's pretty fantastic. Keep it up!
@@UpnaLab It sure seems like it. I would love to do a dual layer and am fortunate to have equipment access through my university and my employer. Hopefully I can get to it before the end of the year. I will be sure to be active on that page! Thank you for democratizing your research!
Wow very cool project! I built a ultrasonic tractor beam device for my college project in physics electronics Autocad and got extra credit in math for an application. My device didn't use a FPGA though. Using software with it would have been awsome. 😮
very nice DIY project! would be even more impressive if it used monodirectional phase cancelation as a stop mid air instead of relying on a physical stop. still a neat trick, and thanks for sharing!
Your work seems to me excellent and with very interesting applications. I would like to know what is the spatial resolution of the particle positioning that you can achieve with this system.
The focal point is quite big (around 6mm diameter) but you can position it with high accuracy. I would say repositioning error should be below 0.05mm but I have never measured that. Absolute error will be higher since there will be reflections with the environment and other external affectors. In Page 7 there are some measurements but of a smaller system static-content.springer.com/esm/art%3A10.1038%2Fncomms9661/MediaObjects/41467_2015_BFncomms9661_MOESM593_ESM.pdf
Thank you for the prompt reply - This is so cool and something I really want to experiment and play around with!! To clarify, do you mean the width of each individual transducer, or the width/size (number of elements) of the entire array setup? Additionally, how would one think about the distance BETWEEN each focal point? meaning, how tightly packed could you get the floating beads and what is the max number of beads you could float? @@UpnaLab
Very cool project, now I understand why Sci Fi characters spend so much time calibrating various arrays, LOL. You could achieve a better packing density of transducers using a hexagonal array, what would be the benefits of this, I wonder, compared with the costs of doing so. I imagine better density would allow for levitation of bigger stuff, maybe higher distance. Accuracy, too? It would increase cost of the hardware, due to more transducers, at least, would the circuit board be complicated? I suppose if the transducer density did not allow for enough space for the back-mounted per-transducer components. What about the software complexity, as the array is no longer rectangular, I imagine it would be easiest to map a rectangular array to the transducers, would that be the way you would handle it? Again, fascinating project.
@@chain3519 Maths are not a problem when using numerical simulations. Hex packing is better but doing it in a single PCB with the electronics on the other side was the real issue.
You are a great thinker. What you describe is one part (Wp1.1) of what we want to use to make a volumetric display that you can touch directly without breaking your hand
1. got a question, could some kind of these be used for propulsion like a drone or something like that? 2. is it just me or this could be uded for those sand "holograms" shown in the black panther movie?
think the power needs would be to great, for what ever to get airborne, do you mean like star trek voyagers Doctor, some sort of Substance, to go with the light, maybe, but it still at the stone axes, and bear skin, stage at the moment?
With a feeding mechanism you perhaps could create a 3d display which could add or remove arbitrary number of points? How many 3d levitation points can you form reliably?
acoustic levitation is one of the lost technology used by ancients to move big rocks and blocks . in the 70's if i remember it correct there is a documentary about a group of monks who demonstrate it using musical wind instruments to levitate rocks ,but they suddenly dissapear not to be found.
Nope, but I still need to contact some maker shops in case that they are interested. However, it would be an expensive kit (around 120$) and perhaps it is too specific?
Question: it it possible to create a sphere with a phase array like this to try to levitate the shere it self (or the power requirementes be to great)? and that happens if we use a concave array with this system? do we get more "levitation force"?
only very small particles can be levitated using this system. A bowl array provides a better focus (stronger) but can be moved only within a smaller volume.
FPGAs used to be 30$ each, it is mental that they are 130$ these days. I have always wanted to move the design towards ESP32 or similar, this seems to be over the top. I wonder if it is just IC shortage or something else.
