Design of micro-seismic data synchronous collectors
Ji Dalong;Han Ruirui;Sun Lei;Gu Zhengdong;Li Shaopeng;Chen Xun;School of Electronics and Information,Jiangsu University of Science and Technology;
This paper describes the design of a micro-seismic synchronous data collector based on MCU and FPGA. Furthermore,we build a set of microvibration data synchronous collecting system with the design. This system uses IEEE1588 protocol to realize the synchronous sampling of data,and uses FPGA to pre-treat and cache A / D data. Field tests have shown that the precision of synchronous system clock can be up to submicrosecond.This micro-vibration signal acquisition can achieve low background noise while its dynamic range reaches 116 d B.All these have proved this system can meet the requirements of micro-seismic data acquisition.