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Learn about the nuances of feedback mechanisms through examples like microphone proximity, force feedback joysticks, and system stability analysis with pendulum demonstrations. Explore the concepts of negative and positive feedback in various systems for enhanced understanding.
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Feedback: More than Loud Noise and Joysticks James Wnorowski
What is Feedback? • When you put a microphone too close to a speaker? • Force Feedback Joysticks? • Something else entirely?
Stability • Which pendulum is stable, and why? • Both placements are in equilibrium. • What happens if I push each mass a little to the side?
Demo • The first time, I just let the flashlight fall • The second time, I moved my hand so that it was under the flashlight, preventing it from falling • This is an example of Negative Feedback
Review • To make systems stable, we use Negative Feedback. • Joystick an example of Negative Feedback. • Speaker / Microphone combination an example of Positive Feedback.