长治中心地震台体应变观测干扰识别  

Interference Recognition of Volumetric Strain Observation in Changzhi Central Seismological Station

作　　者：窦立婷 兰思萱 成诚 耿伟[1,2] 李云[1,2] 平旗[1,2] DOU Li-ting;LAN Si-xuan;CHENG Cheng;GENG Wei;LI Yun;PING Qi(Changzhi Central Seismological Station of Shanxi Earthquake Agency,Changzhi,Shanxi 046000,China;Shanxi Earthquake Agency,Taiyuan,Shanxi 030021,China;State Key Observatory of Shanxi Rift System,Taiyuan,Shanxi 030025,China)

机构地区：[1]山西省地震局长治中心地震台,山西长治046000 [2]太原大陆裂谷动力学国家野外科学观测研究站,山西太原030025 [3]山西省地震局,山西太原030021

出　　处：《山西地震》2018年第3期34-37,共4页Earthquake Research in Shanxi

摘　　要：文章通过分析长治中心地震台TJ-Ⅱ型体应变仪运行以来影响观测资料的干扰因素,发现自然因素主要为气压与雷电,观测系统因素主要为数采故障与信号干扰,人为因素主要是仪器标定和调零,以及一些同震干扰。通过对比分析,总结干扰特征,为准确识别、排除干扰、提高体应变观测资料质量提供参考依据。By analyzing the interference factors of the TJ-Ⅱ volumetric strain gauge in Changzhi Central Seismological Station,it is found that the natural factors affecting the observation data are mainly air pressure and lightning,and the observation system factors are the data acquisition trouble and signal interference,and the human factors are mainly instrument calibration and zero adjustment,as well as some coseismic interference.Through comparative analysis,it can accurately identify and eliminate interference,so as to provide reference for improving the observation data quality of volumetric strain.

关 键 词：体应变 干扰因素 观测质量 

分 类 号：P315.99[天文地球—地震学]