摘要
通过对泰安台重力仪2008—2010年观测运行分析,对仪器运行性能与总体质量分析评价,总结仪器故障原因及影响观测质量的因素,对曲线掉格现象进行统计。结果表明,仪器运行较好,记录质量较高,能清晰地记录到日变固体潮和地震波形,年变曲线连续完整,调和分析M2波中误差高达0.0 005。仪器故障主要为雷击、数采死机、误操作和时间系统紊乱等。影响数据质量因素为雷击、数采故障、地震粘摆等。曲线掉格现象共发生15次,前后有中强地震的比率占80%。
Based on observation data of Tai＇an station from 2008 to 2010, the malfunctions and solutions during the operation of gravimeter are summarized, the observation data was preliminary analyzed. Wheth- er there is a relationship between the small dislocations of the recorded curve and the earthquake is dis- cussed, the factors that affect the observation quality are also listed. The essence conditions of the gravim- eter are as follows, the monthly drift is 257.17X 10 -8m/s 2 the precision of the gravimeter is as high as 0. 000 53; Most of the malfunctions are lightning strike, data acquisition system halt, misoperation and time system turbulence; the factors that affect the data quality are lightning strike, data acquisition system malfunction, pendulum sticked caused by earthquakes and observation curve dislocations. According to the statistic data, there are 73%, eleven times, of the fifteen dislocations are close to mid or strong earth- quakes.
出处
《华北地震科学》
2012年第1期12-17,28,共7页
North China Earthquake Sciences
基金
山东省地震局合同制项目(11Y11)
中国地震局三结合课题(SD2010SJH02)
关键词
泰安台
重力仪
观测运行
资料分析
数据质量
Tai＇ an station
gravimeter
operation
data analysis
quality of data
