🔍 Key Concepts
• Closed-loop control systems and how feedback affects system behavior over time
• Difference between steady-state behavior and oscillatory/transient behavior in control systems
• Common control terms: deadband, saturation, hysteresis, and the term for reducing oscillations
💭 Think About
• In a feedback control loop, what happens to a signal or motion when the system is designed to gradually remove oscillations and settle smoothly?
• Which option refers specifically to a system’s tendency to settle out oscillations, rather than to a region of no response or a limit on maximum response?
• For each choice, ask yourself: does this describe a limit, a lag, a no-response zone, or a reduction of vibration/oscillation?
✅ Before You Answer
• Match each term to its definition: deadband (no response region), saturation (output at maximum/minimum limit), hysteresis (different paths for increasing vs decreasing input), and the remaining term (reduction of oscillation).
• Visualize a gauge needle or a control valve that jiggles back and forth and then gradually stops oscillating—identify which term describes that settling behavior.
• Eliminate any options that describe static limits or non-response regions, and focus on the one that describes progressive reduction of oscillation.