一种并行多通道数据获取系统设计

摘要

针对无损检测技术中激振检振技术对相位信息应用的工程需求，基于M AX1308设计了一种8通道并行数据获取系统，数据完整地保持了各通道间的相位信息。并根据工程需求设计了调理电路，系统可以完成电压±5 V之间的信号采样，每通道的采样速率达到456 ks/s。%To meet the technique requirements of vibration absorber in nondestructive testing technology ,an 8-channel parallel data acquisition system based on MAX1308 was designed in this paper ,in which the data could keep the phase information integrality between each channel . According to the requirements of engineering , the conditioning circuit was designed , the system could completely get the signal samples between plus and minus 5 V voltage ,the sampling rate can be up to 456 ksps per channel .