CTM-302型三分量磁通门磁力仪配接的智能数据采集记录系统,于1987年开始在中国南极长城站地磁台投入使用。取得了全年完整、准确的数字记录。该系统以高速采集、高密度磁带记录数据、定时打印每分钟均值曲线,具有在恶劣条件下长期连续工作的能力。在动态范围、稳定度和可靠性等方面优于模拟记录系统,明显地改善了数据的质量。本文介绍了该系统的性能,并提出了一些改进设想。 CTM-302-type three-component fluxgate magnetometer with intelligent data acquisition and recording system, started in 1987 in China Antarctic Great Wall Station geomagnetic Taiwan put into use. Has achieved full year, accurate digital record. The system records at high speed and high density tapes, and prints the average value curve every minute. It has the ability to work continuously for a long time under harsh conditions. Outperform analog recording systems in terms of dynamic range, stability and reliability, significantly improving data quality. This article describes the performance of the system, and put forward some ideas for improvement.