【摘要】 DCM-1型数字地磁脉动观测系统,是为开展地磁测深及地磁脉动观测工作而研制的。该系统由高灵敏度磁通门磁力仪、多路数据采集器、盒式磁带记录与回放器,以及时间服务装置等部分组成。系统具有大动态、低噪声、高精度、低功耗,以及操作简单、使用方便等特点。系统可直接与计算机接口,也可直接回放进行模拟恢复。利用该系统进行了多次野外观测,取得了较好的野外观测资料,并显示出比进口的模拟系统能记录到较为丰富的信息。更多还原

【Abstract】 A model DCM-1 digital observation system for geomagnetic pulsations has been developed for geomagnetic deep sounding and geomagnetic pulsation observation. The system consists of a fluxgate magnetometer with high sensitivity, data-acquisition subsystem, digital cassette and time service unit etc. The system features large dynamic range, low noise, high accuracy, low power consumption, and simplicity and convenience for operation. The system can be interfaced with a computer for data-processing, analog curves can be automatically plotted when the cassette is played back through the system. The system has been tested in the field and some valuable data have been obtained which contain much more information than by an analog recorder.更多还原