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← ScienceWhich mechanism causes increased settling time in MEMS capacitive accelerometers subject to pulse disturbances?
A)Electrostatic discharge creates parasitic capacitance
B)Brownian motion excites resonant frequencies
C)Dielectric absorption causes charge relaxation✓
D)Electromagnetic interference induces eddy currents
💡 Explanation
Dielectric absorption in the accelerometer's capacitor causes charge polarization lagging behind the applied voltage, leading to additional settling time because charge needs to redistribute. Therefore settling time increases, rather than being caused by electrical discharge.
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