Feedback Model

The Feedback model app generates a dynamic block model diagram representing cybernetic systems, on which the input value, block values and disturbance value can be altered. This allows you to see, in real time, the output of the system. The type of feedback in the system being modelled is shown at the bottom of the screen.

Dynamic graphs are generated. By changing the settings, the type of input used to generate the graphs can be switched between using straight input to generate line graphs, or using sinusoidal input to give dynamic sine graphs of both the input and output. By using intuitive gestures, you can easily manipulate the graphs, altering the frequency, phase and amplitude.

This application is intended for use alongside appropriate reading materials on the subject of Cybernetics to aid in understanding block systems. It serves as a brilliant revision tool when dealing with questions on feedback block diagrams.

All suggestions are welcome to help me make this the most useful application possible; please either leave feedback via the app reviews or using the support contact link.

更新履歴
For version 3, the app engine has been completely re-designed from the ground up.

• Feedback models are now generated from a file
• Multiple models can now be viewed on the iPhone version of the app by clicking the embedded model block to view and change an embedded model.
• The input type for the graphs can now be altered in the app settings (From the settings app)
• Bug fixes make the output value more accurate, preventing decimal cropping that was previously occurring.
• Systems with embedded models can now be modelled.

Note: Some of these changes only apply to the iPhone version of the application currently. A future update will bring them to the iPad version.