排除地电观测供电对地磁干扰装置在ZD8B地电仪中的应用
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摘要
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 further development of the digitalization and intelligentization of the instruments for earthquake precursors' observation digital resistivity variometers and intelligent digital geomagnetic instruments have been equipped at a number of seismic stations in China The use of these instruments makes the collection of the observational data more scientific and more rapid However,underground currents of the power supply for the resistivity observations usually cause magnetic noises,thus greatly influence the geomagnetic observations The authors suggest the application of the device capable of eliminating the disturbing influences of the power supply for resistivity observations to geomagnetic observations into the ZD8B-type risistivity variometer and the disturbing influences of the power supply for resistivity observations to the geomagnetic observations can thus be avoided
With the further development of the digitalization and intelligentization of the instruments for earthquake precursors' observation digital resistivity variometers and intelligent digital geomagnetic instruments have been equipped at a number of seismic stations in China The use of these instruments makes the collection of the observational data more scientific and more rapid However,underground currents of the power supply for the resistivity observations usually cause magnetic noises,thus greatly influence the geomagnetic observations The authors suggest the application of the device capable of eliminating the disturbing influences of the power supply for resistivity observations to geomagnetic observations into the ZD8B-type risistivity variometer and the disturbing influences of the power supply for resistivity observations to the geomagnetic observations can thus be avoided
引文
[1 ] 蒋延林 ,嵇才建 ,赵卫红 地电供电对地磁观测干扰的排除 [J] 地震地磁观测与研究 ,1 999,2 0 (1 ) :78-80
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