基于DSP的电容数据采集系统的开发设计

Development and Design of Capacitance Data Acquisition System based on DSP

鉴于数字信号处理器件(DSP)具有较快的运行速度和强大的数据处理能力等优点,本文设计了基于DSP芯片的电容测量数据采集系统。系统包括正弦信号发生器、C/V转换电路、交流放大电路、全波整流电路、低通滤波电路、A/D转换电路、传感器极板间切换电路以及系统通讯接口等。

Measuring and Data Collecting System is based on the DSP in view of the digital signal processing component（DSP）which has high running speed and formidable data processing ability etc. System includes sine wave signal generating device, C/V conversion circuit, A/C amplificatory circuit, full-wave rectification circuit, low-pass filter circuit, A/D conversion circuit, the circuit for switching the capacitor of electrodes and system communication connection and so on.