随着地震监测前兆手段仪器数字化、智能化的深入发展 ,在全国许多台站配备了数字地电仪和地磁数字智能仪 ,对观测数据的采集更科学更迅捷。但由于地电观测供电产生地下电流会带来磁干扰 ,对地磁观测带来了很大影响。笔者提出将排除地电观测供电对地磁干扰装置应用在ZD8B地电仪仪器中 ,从而避免了地电供电对地磁测量的影响 With the digitalization and intelligent development of the instrument of earthquake monitoring precursors, many digital stations and geomagnetic digital smart meters are equipped in many stations across the country, and the collection of observation data is more scientific and swift. However, the magnetic interference generated by the underground current generated by the geoelectric power supply has a great impact on the geomagnetic observation. I propose to exclude the geoelectric power supply for the application of geomagnetic interference in ZD8B geoelectric instrument, thus avoiding the impact of geoelectricity on the geomagnetic survey