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← TechnologyWhich positioning error arises when rapid acceleration exceeds quadrature encoder resolution in a robotic arm?
A)Velocity saturation introduces arm oscillations
B)Cyclic skipping causes transient missteps✓
C)Cumulative drift reduces positional accuracy
D)Aliasing induces phantom joint orientations
💡 Explanation
Cyclic skipping occurs because the robot's physical movement between encoder pulses exceeds the encoder's resolution; therefore, the controller misses counts, causing transient missteps, rather than steady-state inaccuracies or control instability, which arise from other encoding inadequacies.
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