多通道信号隔离的高精度数据采集系统

Smart Data Acquisition System with Multi-Channel Signals Isolated

普通检测设备在进行多个检测点同时采集数据时,由于多路采集信号参考点不同而相互干扰。采用悬浮电路将多路通道信号隔离,实现了各路激励电源和采集信号分别进行转换,有效地抑制了干扰成份。特别是在运用护环法检测技术进行钢筋混凝土腐蚀的检测系统中,取得了较好的效果。

Simple detecting device is＇ not authentic enough for the output signals＇ reference points are different. This system isolates signals with suspending circuits. Different prompting powers and signals are converted separately and disturber is resisted. It can obtain more authentic data in steel bar corrosion detecting of reinforced concrete when using guard ring detecting technology. Primary acquisition results show that this technique improves veracity and accuracy distinctly.