For capacitive sensing, driving signal with DC bias voltage and ac voltage is usually necessary for the measurementofcapacitance.
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
These integrated devices enable the measurementofcapacitance intelligently to detect human proximity across range, direction of approach, gesture recognition, etc.
这些集成器件使得电容测量可以智能地检测到人接近的范围、方向、手势识别等。
3
The principle ofcapacitance current measurement based on the injecting signal is discussed.