The term "velocity lag" refers to a
- speed error.
- acceleration error.
- position error.
Explanation from PART66Online
Velocity lag is the steady-state following or position error that exists when a servo is tracking a constantly changing (constant-velocity) input. A finite error is needed to generate the drive that keeps the output moving at the input rate, so the output continually lags the demand by a fixed positional amount.
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vale asked · 8 Oct 2020
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