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Which control problem worsens when shaft encoder resolution drops significantly in a collaborative robot?

A)Thermal runaway amplification
B)Inverse kinematic drift
C)Resonance frequency excitation
D)Electromagnetic interference coupling

💡 Explanation

Lower encoder resolution degrades the precision of joint angle measurements, and the issue is aggravated; joint angle inaccuracies cause the accumulation of errors through the inverse kinematic calculations, eventually leading to positional drift because accurate robot control relies on precise feedback, therefore inverse kinematic drift, rather than other electrical malfunction.

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