由集成电子模件检测电容变化并将其转变为压力比例模拟信号。
This capacitance change is detected by an integrated electronic module and converted into a pressure-proportional analogue signal.
其中，电容变化信息的提取以及数据采集是该技术的关键环节之一。
So the extraction of the capacitance change information and data acquisition are the key links of the technique.
各部分分别基于半导体压阻效应、电阻迁移率变化、极板间电容变化为原理制作而成。
They are based on the principle of silicon piezoresistive effect, mobility change, and variable capacitance respectively.
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