节点数据采集系统数字地震仪

Node digital seismographs data acquisition system

随着三维勘探的普及,勘探精度要求越来越高,对数字地震仪的采集精度提出更高的要求,接收道数也越来越多。目前有线仪器的性能已经发挥到了极限,有线地震仪的结构已经成为阻碍地震仪进一步发展的瓶颈,必须有新的技术取而代之才能使地震仪技术继续向前发展。文章以Fairfield公司研发的独立节点地震数据采集系统Z-Land为代表,阐述了节点数据采集系统的工作原理及其优缺点。

With the popularity of 3d exploration,exploration accuracy requirement is higher and higher,which requires the digital seismometers acquisition to be more and more accurate and to be able to receive more and more channels.Now the cable instrument performance has play to strong points,cable seismometers structure has became an obstacle to the further development of seismometers bottleneck.For the sake of seismograph technology development,it is necessary for a new technology to replace it.Taking the independent node seismic data acquisition system Z-Land developed by Fairfield as an example,this paper expounds working principle,the advantages and disadvantages of node acquisition system.