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| 高精度多频电法数据采集系统 | |
| 引用本文： | 陈儒军,罗维炳,何继善,白宜诚,汤井田.高精度多频电法数据采集系统[J].物探与化探,2003,27(5):375-378. |
| 作者姓名： | 陈儒军 罗维炳 何继善 白宜诚 汤井田 |
| 作者单位： | 1. 中南大学,信息物理工程学院,湖南,长沙,410083 2. 石油物探局,技术发展中心战略研究部,河北,涿州,072751 |
| 基金项目： | 国家"十五"科技攻关计划(2001BA609A 5) |
| 摘 要： | 开发了新一代高精度多频电法数据采集系统.该系统在硬件上采用24位A/D转换器、大规模可编程门阵列和低功耗PENTIUM-166 PC-104工控机;在软件上采用面向对象软件设计与分析、WINDOWS编程及多种程序设计语言混合编程技术;在数据处理中采用数字滤波、相关检测等信噪比增强技术,有效地压制了各种干扰;可开展电阻率法、激电法(时间域或频率域)、复电阻率法、CSAMT等多种电法勘探. |
| 关 键 词： | 高精度多频电法 数据采集系统 微弱信号 |
| 文章编号： | 1000-8918(2003)05-0375-04 |
| 收稿时间： | 2003-01-16 |
THE DATA ACQUISITION SYSTEM IN THE HIHG-PRECISION MULTI-FREQUENCY ELECTRIC METHOD |
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| Institution: | 1. College of Information Physical Engineering, Central South University, Changsha 410083, China; 2. Department of Strategic Research, Technical Development Center of Petroleum and Physical Exploration Bureau, Zhuozhou 072751, China |
| Abstract: | A new generation of data acquisition system for the high precision multi-frequency electric method has been developed. In hardware, the system adopts 24-bit A/D conversion device, large scale programmable gate array and low power dissipation PENTIUM-166 PC-104 embedded industrial computer. In software, it employs object oriented software designing and analysis, WINDOWS programming and mixed programming technique characterized by diversified programming languages. In data processing, such means for strengthening the signal to noise ratio as digital filtering and correction detection are utilized so as to suppress various kinds of interference in an effective way. This system can be used in varied electric exploration techniques such as resistivity method, IP method (time domain or frequency domain), complex resistivity method and CSAMT method. |
| Keywords: | high-precision multi-frequency electric method data acquisition system weak signal |
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