|
It's a closed loop system like you, the gas pedal and the speedo when you're driving. You give it a little bit and nothing noticeable happens so you give it a bit more until something does happen. That will probably take you too far so you'll back off a little and then a little more. Eventually you'll settle at a point where the on again/off again matches the minimum amount of controllable movement the car/mount (system) can work over.
Control loop tuning is a form of wizadry that plays off optimum response against stability. You really want to be at the stable end.
Steve.
|