海底大地电磁数据采集电路的接口技术  

THE INTERFACE TECHNOLOGY OF THE SEAFLOOR MANGETOTELLURIC ACQUISITION CIRCUIT

作　　者：邓明[1] 魏文博[1] 谭捍东[1] 金胜[1] 邓靖武[1] 李立学[1] 

机构地区：[1]中国地质大学,北京100083

出　　处：《物探与化探》2003年第1期23-27,共5页Geophysical and Geochemical Exploration

基　　金：国家863计划海洋领域研究课题资助(820-03-04)

摘　　要：为了实现智能化的海底大地电磁数据采集,必须应用计算机技术使采集过程自动控制、被测数据自动存储、且电路具有某些纠错功能。根据海洋工程的作业特点,较详细地介绍了自行研制的海底大地电磁仪中的数据采集接口技术。整套仪器系统经海洋试验,证实是有效的和实用的。The intellectualized detection technology is important in the seafloor magnetotelluric acquisition. The key problems encountered during the signal acquisition are large quantities of detection information, long working time on the seafloor, serious disturbance of the environment and complex logical control. These problems could not be solved without intellectualized measures. In fact the procedure of intellectualizing the seafloor magnetotelluric acquisition is the procedure of applying the computer technology to the acquisition autocontrol, automatically saving the data with the circuit having immunity. Considering the specific characteristics of the operation in the ocean engineering, the PC104 is inset in the seafloor magnetotelluric instrument as a control unit. Several control interfaces are selected and the controlled positions are arranged correctly. The circuit driver takes into account the compatibility of various interfaces. The instrument has been proved to be effective and practicable through the marine experiments.

关 键 词：数据采集 大地电磁 海洋探测 计算机接口 纠错功能 

分 类 号：P715[天文地球—海洋科学]