Version 1.0, August 31, 2001, Copyright, Hugh Jack 1993-2001
· although these systems are not linear, we can approximate them with linear models and measures.
** Note: many of the concepts in this section apply to other controls sections as well
· A simple feedback control loop is shown below
· If we expand the above system to system that has second order response we get a system like that below,
· We can even develop control systems that will compensate for non-linear effects, such as gravity,
