基于Cirrus地球物理测量芯片的微地震数据采集器设计
详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文
摘要
采用Cirrus公司的地球物理测量芯片CS3301A、CS5373A和CS5378设计了一种单通道微地震数据采集器,该采集器采用GPS模块获取经、纬度坐标和精确时间,采用大容量U盘存储数据文件,并以C8051F单片机作为处理器。该采集器的信号转换电路由程控放大器、24位ADC、Sinc+FIR+IIR多级数字滤波器等器件组成,其采样率可在1~2000之间选择。该采集器整体具有精度高、噪声低、功耗低的特点,适用于需要大量站点的微地震监测项目。
A single-channel micro-seismic data acquisition system was designed out by using Cirrus chip CS3301A,CS5373A and CS5378.Take C8051F MCU as the processor,this data acquisition system adopts GPS-module to obtain latitude and longitude coordinates and precise time,adopts large-capacity U disk to do with data file storage.Consist of program-controlled amplifier,24-bit ADC and Sinc+FIR+IIR digital filters,the sampling rate of such data acquisition system can be 1~2000.This acquisition system has the following advantages:high accuracy,low noise,low power consumption and apply for the large number of micro-seismic monitoring project.
引文
1宋维琪,陈泽东,毛中华.水力压裂裂缝微地震监测技术.中国石油大学出版社,2008
    2Peter M Duncan.Is there a future for passive seismic-First Break,Vol.23,2005
    3Kit Chambers,Sverre Brandsberg Dahl,et al.Testing the ability of surface arrays to locate microseismicity.SEG2008annual meeting,Las Vegas,1436~1440
    4王翠芳,邵玉平,宋澄.用套片方案研制24位地震数据采集器的优越性.地震地磁观测与研究,2007,28(4):69~73

版权所有:© 2023 中国地质图书馆 中国地质调查局地学文献中心