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地电场观测漏电干扰的排查一例?
The investigation of geoelectric observation interference resource
- DOI:
- 作者:
- 陈志刚 田山 徐学恭 马朝晖 陈嵩
- 作者单位:
- 天津市地震局，天津 300201
- 关键词:
- 地电场；矢量合成；漏电；排查；干扰源
Electric field; vector synthesis; leakage; detection; interference source
- 摘要:
-
徐庄子台地电场观测自2009年10月28日起出现等幅的方波状漏电干扰。为尽快排除漏电对观测的干扰，确定干扰源的位置，本文通过地电场矢量合成的计算方法初步确定了干扰源的方位。然后对该方向的工厂、学校等的用电设备进行详细排查，最终查出漏电设备，进行防漏电处理后，使该台资料恢复了正常。
Upon to Oct 28th,2009,the Geoelectric Field observation of Xuzhuangzi Observatory was hit by square wave interferences which degraded data quality severely.Through many more arduous investigations of our staff,including the experts from Tianjin Seismological Bureau,we find the exact location of the interference resource finally. It was a small-scaled lumber-dealing factory located 500m northeast of Xuzhuangzi Observatory,which produced the square wave interferences while its heating system operated in Winter .It was confirmed that the electricity leakage of its heating system had produced severe interferences on the pattern of Geoelectric Field data,such as square wave.We assisted the factory in electricity-leaking proof ,and excluded such interference factors thuroughly. This article briefly introduces how to locate the interference resource through theoretical calculations,and exclude it in the end.
