【摘要】 通过对涉县地磁台FHD质子矢量磁力仪信号线避开市电交流线路及缩短信号线长度试验,认为仪器的信号线过长对仪器的背景噪声有着较大的影响,缩短信号线的长度可以有效降低仪器的背景噪声。另外,信号线附近的市电交流线路对仪器的观测结果影响有限。更多还原

【Abstract】 In Shexian seismic station, the test of FHD proton vector magnetometer signal line of shexian geomagnetic station avoiding mains DC line and shortening the length of the signal line, it is considered that the signal line of the instrument is too long and has a great influence on the background noise of the instrument. Shortening the length of the signal line can effectively reduce the background noise of the instrument. In addition, mains DC lines near the signal lines have limited influence on the instrument observation results.更多还原