For capacitive sensing, driving signal with DC bias voltage and ac voltage is usually necessary for the measurement of capacitance.
对电容式加速度计，为测量其电容的变化，通常需要带直流偏置的交流电压信号来驱动。
2
In this paper, quantitative analyses on the effects of driving signal with different bias voltage polarity are made for double-sided driving with voltage feedback.
文章中定量分析了带有电压反馈的双边驱动信号对器件特性的影响。
3
This kind of operational amplifier has higher dynamic scope and has solved the problem that the signal amplitude gets limit by the bias voltage, and has higher bandwidth.