On this page are various Javascript demonstrations of aspects of cybernetic systems. These work in Firefox and Chrome and some later versions of Internet Explorer which support the canvas. Click on the appropriate link and see the file.
Some of these have block diagrams of systems in various forms - and if you click on a block with a parameter you can change its parameter. Some have sliders which represent aspects of input signals - if you move the slider(s) the input changes which affects the output
Enjoy - and any feedback appreciated
Static model of Feedback System
Feedback System with Limits
..with Positive loop gain
Why need Speed Control
.. with Dynamics
Game illustrating feedback
Static Transfer Functions
Dynamic Transfer Functions
Electronic Systems
Building System Models
On Complex Numbers
On Sin and Circle
Sin, Circle and Systems
Systems And Sinusoids
Sin And Circuits
Step And First Order Systems
Step and Second Order Systems
System and Freq Response
Audio Signals and Log Scaling
Robot in an environment
Setting robot speeds
