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← TechnologyWhich actuator response occurs when the hydraulic servo-valve's dither amplitude decreases to zero?
A)Non-linearity near null increases sharply✓
B)Actuator velocity saturation drops gradually
C)Hysteresis in position control reduces
D)System bandwidth reaches maximum gains
💡 Explanation
Decreased dither in the hydraulic servo-valve amplifies any surface imperfections and stick-slip friction. Stiction is lessened by small vibrations of the dither signal; therefore, the null non-linearity increases drastically rather than decreasing, optimizing bandwidth, or altering velocity.
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