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← TechnologyWhich outcome results when drift accumulation miscalibrates an inertial measurement unit inside a robot?
A)Positional error increases over time✓
B)Motor torque remains indefinitely constant
C)System voltage experiences rapid oscillations
D)Link lengths immediately become shortened
💡 Explanation
Positional error worsens because gyroscope and accelerometer data in the IMU are integrated over time; this process, known as dead reckoning, accumulates even small sensor errors impacting robot path planning causing drift; therefore the calculated robot position diverges from the actual one rather than voltage instability.
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