某压电式加速度传感器的电荷灵敏度为kg=l5pC·m-1·s²,若电荷放大器的反馈电容Cf=7500pF,当被测加速度为10sin15000t m/s²时,试求电荷放大器的稳态输出电压幅值。
稳态输出电压幅值为Um=Q/Cf=15x10/7500=0.02(V)=20mV
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