Rise time, peak time, overshoot and settling time.
Rise time t_r, peak time t_p, percent overshoot %OS, settling time t_s (±2% or 5%) and steady-state error quantify transient and steady behaviour. Specifications translate to allowed pole regions in the s-plane. Used to design and compare controllers.
A servo spec might require less than 10% overshoot and 0.5 s settling time.
Time-domain specifications describe the response in terms that clients and designers understand, such as rise time and overshoot.
Rise time, peak time, overshoot and settling time.
Time-domain specifications describe the response in terms that clients and designers understand, such as rise time and overshoot.
The time for the response to move from a low percentage to a high percentage of its final value, often 10 to 90 percent.
The amount by which the response exceeds its final value at its peak, expressed as a percentage of the final value.
Typical applications include writing a requirement that a positioning stage must settle within two seconds, specifying the maximum overshoot of a heater temperature controller and comparing two controllers by rise time and peak time.
Study "Second-order system response" first (topic 48 of 101 in Signals, Control & Comms). It covers the groundwork this topic builds on.
Delay time. Overshoot vs damping. Trade-off speed vs overshoot.
A servo spec might require less than 10% overshoot and 0.5 s settling time.
The next topic is "Steady-state error", which builds directly on this one.
It is classed as Intermediate in Signals, Control & Comms (topic 49 of 101). It is an intermediate topic. Work through the beginner topics in Signals, Control & Comms first.
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