Experiments with creating air flow digital counting machine
Already have an account? Log in.
To make the experience fit your profile, pick a username and tell us what interests you.
Links:
From Scientific American, December 1964, pages 80-88:
http://miriam-english.org/files/fluidics/FluidControlDevices.html
Coding and Computation in Microfluidics(coanda-less pneumonic devices ):
http://cba.mit.edu/events/07.05.fluid/
Exploring macro scale fluidic logic systems in LGA:
https://courses.cs.washington.edu/courses/cse599d/13au/projects/AaronParks/macro.htm
Aerodinamics effecrts in pneumonic:
Prakash.pdfAdobe Portable Document Format - 27.24 MB - 02/01/2018 at 05:35 |
|
|
I assembled fully-functional 1bit full adder on 10 fluidic elements. Which doesn't require electricity for work
V - means VISIBILITY. Fluidic-based element is good for scaling to both sides.
I made a setup of openfoam + CFDof + freeCAD with fluidic element and could start CFD simulation of what's happening inside and why element works incorrectly in reality. THis design was bottowed from VOLGA elements datasheet.
This is the first 3D-printed 2NOR Logic gate that works on the Coanda effect - the tendency of a fluid jet to stay attached to a convex surface.
My friend Anton sent me photo of his current early-bird prototype for investigating fluidic elements.
Look brutal but it work. non-stable, but work
Base logic element simulation results for setting to log.1 right control channel:
And left control channel:
Sbitardov in his comment gave me cool book that I never see before.
It's about ussr logic elements named "Volga". Quality of album is enough to reproduce the same modules with 3D printer. Let's take a loot of some elements:
OR gate with 2 positive and one negative input.
Trigger. Main differnece that it have symmetric camera. As a result - it's bistable.
AND element. 5 = (2 && 3) && !6
Other elements are here: https://www.twirpx.com/file/1603666/
This file is too large to add it here.
Curiosity led me to the Internet archive, so I found interesting kit pictures from Tekniska museet
Assume there are different logic elements in it and some additional devices for making experiments
I can't find it on ebay, but it looks so cool, so I want to find it out.
I'm not sure that this is coanda effect logic. Or logic in general, but..
Links:
https://archive.org/details/arkivkopia.se-digmus-tek-TEKA0008814
https://archive.org/details/arkivkopia.se-digmus-tek-TEKA0008813
https://archive.org/details/arkivkopia.se-digmus-tek-TEKA0008820
https://archive.org/details/arkivkopia.se-digmus-tek-TEKA0008816
Using album of USSR "Volga" fluidic elements we need to redraw it, model in 3D, model LGA simulation and create prototypes.
Each element would have 50x30x5mm or something like this and represent one elementary logic operation
Let's take one XOR element, two RS-triggers and two 2AND elements and combine them into elementary binary neuron with two (or more) inputs. Each input have only two states - On and Off, and weights can be 1 and 0. So we send input to XOR element or not.
Current weight states are stored in RS-triggers, so we can program them before use.
We put neuron schematic into one logic element, let's name this element of Neva series.
As fluidic elements by themselves are small (10x10mm) and only air tracts are take most part of chip space we can put or five elements into the module with the same size as Volga elements.
[this comment has been deleted]
I'm note sure that I want to explore microwave devices :)
Ooops !
It was a mistake, sorry, I erase it :-)
http://cba.mit.edu/docs/theses/08.09.Prakash.pdf
interesting ?
As for microfluidics this is very interesting tools, but harder to replay that "big" fluidics.
I found some methods how to do microfluidic elements - e.g. this one https://www.youtube.com/watch?v=eNBg_1GPuH0
Look like easy to try.
Hi Artem, do you know there are dozens of Soviet books about fluidics? It is called пневмоника, but that`s the same thing.
See e.g. here:
http://publ.lib.ru/ARCHIVES/B/''Biblioteka_po_avtomatike''/_''Biblioteka_po_avtomatike''_0400-0499_.html (books No 457, 478 and more, switch pages at the top)
http://retrolib.narod.ru/books14/1965_salmanson.djvu
https://www.twirpx.com/file/1603666/
Hi, Cool books list. Thanks! Yes, I already have some books in this list.
Oh my.
If you throw LGA simulations in the project, there is NO WAY I could refuse your invitation !
Assume LGA(or other) simulation is only one way to get a guarantee that this will work
From this moment I know :) As for me I never used LGA before
Artem Kashkanov
Tim
Yann Guidon / YGDES
deftcoyote
https://www.youtube.com/watch?v=IxXaizglscw
Slightly related ;-)