Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision 		Previous revision
Last revision Both sides next revision
a_butterfly_in_an_analogue_computer_piksel21 [2021/11/18 13:10]
admin [Schedule] 		a_butterfly_in_an_analogue_computer_piksel21 [2021/11/18 17:35]
admin [Part 1: Background, Introduction and Build]
Line 1: Line 1:
 ====== A Butterfly in an Analogue Computer ====== ====== A Butterfly in an Analogue Computer ======
  
-by Wolfgang Spahn+by Wolfgang Spahn\\
 20 Nov 2021\\ 20 Nov 2021\\
 [[https://21.piksel.no/2021/11/20/a-butterfly-in-an-analog-computer/|Piksel 21]]\\ [[https://21.piksel.no/2021/11/20/a-butterfly-in-an-analog-computer/|Piksel 21]]\\
- 
  
 {{:confetti_3702b.jpg?400|}}\\ {{:confetti_3702b.jpg?400|}}\\
  
-===== Schedule =====+A workshop for an Chua Circuit with in an analog computer to generate 
 +chaotic signals, noise and sound. 
 +This circuit generates chaotic signals over a wide range of frequency 
 +therefore it is an interesting device for noise and sound art,  
 +performances and installations.\\ 
 +\\ 
 +In the 1970th Edward Lorenz developed a mathematical model for the  
 +weather and climate prediction, the Lorenz Attractor, a strange  
 +attractor with chaotic and fractal behavior and sensible initials  
 +conditions, that in the end could lead for example to a tornado in  
 +Brazil - the so called Butterfly Effect. 
 +At that time it was not possible to compute this module with in an  
 +analog computer, the chips for doing the multiplication were to  
 +noisy. That’s why in 1983 Leon O. Chua introduced a much simpler  
 +circuit (no multiplication) with the same chaotic behavior, the Chua  
 +Circuit.\\
  
-=== Part 1: Background, Introduction and Build ===+The Analog Computer Confetti is a modular system that makes it  
 +possible to perform all kind of computations and operations on base  
 +of electrical voltage. This stack able modular electronic analog  
 +computation system was and is still developed by Wolfgang Spahn since 
 +2015.\\ 
 +\\ 
 +Chua’s Circuit can be made out of two modules of the analog computer Confetti, aGyrator and the Chuas Diode. The analogue computer Confetti is a modular system that makes it possible to perform all kind of electronic computations.\\ 
 +\\ 
 +In the workshop we will learn the basic functions of an analog  
 +computer. We also will build the two main components for an Chua  
 +Circuit as modules of the analog computer Confetti: a Gyrator and a  
 +Chua Diode. With these two modules we will create the Chua Circuit to 
 +listen to the butterfly in our tornado.\\ 
 + 
 +---- 
 +==== Part 1: Background, Introduction and Build ====
 [[https://dernulleffekt.de/doku.php?id=analogcomputation:01_chuascircuit|Analog Computation #01 - Chua's Circuit]]\\ [[https://dernulleffekt.de/doku.php?id=analogcomputation:01_chuascircuit|Analog Computation #01 - Chua's Circuit]]\\
  
-== About anlogue computation ==+== About Anlogue Computation ==
 [[https://paperpcb.dernulleffekt.de/doku.php?id=analog_computer:analog_computer_main|Confetti - An Analog Computer]]\\ [[https://paperpcb.dernulleffekt.de/doku.php?id=analog_computer:analog_computer_main|Confetti - An Analog Computer]]\\
  
 +== ... and Chua's Circuit==
 +{{:1280px-chua_s_circuit_with_chua_diode.svg.png?200|}}\\
 +//(graphic by [[https://commons.wikimedia.org/w/index.php?title=User:Chetvorno&action=edit&redlink=1|Chetvorno]], [[https://creativecommons.org/publicdomain/zero/1.0/deed.en|CC0]])//
  
-{{:1280px-chua_s_circuit_with_chua_diode.svg.png?400|}} +== Build an Analogue Computer ==
- +
-==build a computer==+
 {{:confetti116_chua_s_diode_ii_01.jpg?200|}}\\ {{:confetti116_chua_s_diode_ii_01.jpg?200|}}\\
 [[https://paperpcb.dernulleffekt.de/doku.php?id=analog_computer:confetti116_chua_diode|Confetti 116 Chua's Diode]]\\ [[https://paperpcb.dernulleffekt.de/doku.php?id=analog_computer:confetti116_chua_diode|Confetti 116 Chua's Diode]]\\
 +{{:confetti101_gyrator_03_15mh.jpg?200|}}\\
 [[https://paperpcb.dernulleffekt.de/doku.php?id=analog_computer:confetti101_gyrator|Confetti101 Gyrator]]\\ [[https://paperpcb.dernulleffekt.de/doku.php?id=analog_computer:confetti101_gyrator|Confetti101 Gyrator]]\\
 +{{:confetti302_breadboard_03.jpg?200|}}\\
 [[https://paperpcb.dernulleffekt.de/doku.php?id=analog_computer:confetti302_breadboard|Confetti302 Breadboard]]\\ [[https://paperpcb.dernulleffekt.de/doku.php?id=analog_computer:confetti302_breadboard|Confetti302 Breadboard]]\\
 +{{:confetti103_buffered_output_03.jpg?200|}}\\
 [[https://paperpcb.dernulleffekt.de/doku.php?id=analog_computer:confetti103_buffered_output|Confetti103 Buffered Output]]\\ [[https://paperpcb.dernulleffekt.de/doku.php?id=analog_computer:confetti103_buffered_output|Confetti103 Buffered Output]]\\
 +{{:confett_9v_power_8583.jpg?200|}}\\
 [[https://paperpcb.dernulleffekt.de/doku.php?id=analog_computer:9v_battery_supply|Confetti 9V Battery Supply]]\\ [[https://paperpcb.dernulleffekt.de/doku.php?id=analog_computer:9v_battery_supply|Confetti 9V Battery Supply]]\\
- 
  
  
 ---- ----
 === Part 2: See, Listen and Discover  === === Part 2: See, Listen and Discover  ===
-- writing a progrmm for an analogue computer\\ + 
-- X-Y-Z Visualisatio\\ +==writing a progrmm for an analogue computer== 
-- Voltage Controll\\+{{:chua_s_circuit_02.jpg?200|}}\\ 
 + 
 +"patching is thre new programming""\\ 
 +{{:chua_s_circuit_setup_01.jpg?400|}}\\ 
 + 
 +== X-Y-Z Visualisation == 
 +{{:chua_s_circuit_pure_134355.jpg?400|}}\\ 
 +{{:chua_s_circuit_02_xyz.jpg?200|}}\\ 
 + 
 +== Voltage Control == 
 +OpAmp with a LDR in the feedback loop.\\ 
 + 
 +[[https://en.m.wikipedia.org/wiki/Variable-gain_amplifier|Voltage Controlled Amplifier (VCA)_wikipedia.org]]\\ 
 + 
 +[[https://en.m.wikipedia.org/wiki/Operational_transconductance_amplifier|Operational Transconductive Amplifier (OTA) _wikipedia.org]]\\ 
 +[[https://en.m.wikipedia.org/wiki/LM13700|LM13700 _wikipedia.org]]\\ 
 +**CA3080, LM3080**\\ 
 +[[https://www.banzaimusic.com/CA3080AE.html|CA3080AE _banzaimusic.com]]\\
  
 ---- ----
 +==== Links & Recources ====
 +
 +[[https://www.chaotic-circuits.com/]]\\
 +[[http://www.chuacircuits.com/]]\\
 +[[http://nldlab.gatech.edu/w/index.php?title=Group_3_2012]]\\
 +[[http://www.instructables.com/id/A-Simple-Chaos-Generator]]\\
 +[[http://www.scholarpedia.org/article/Chua_circuit]]\\
 +[[http://crossgroup.caltech.edu/chaos_new/Chua.html]]\\
 +[[http://jamesnsears.com/archive/ecechua.htm]]\\
 +[[https://hypertextbook.com/chaos/strange/]]\\
 +[[https://www.vanderbilt.edu/AnS/psychology/cogsci/chaos/workshop/WorkshopF.html]]\\
 +
 +----
 +if not other mentioned contend of this page is by Wolfgang Spahn (2008-2021) All Rights Reserved\\
 +