泰安台PET重力仪2008—2010年观测运行分析
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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.Whether there is a relationship between the small dislocations of the recorded curve and the earthquake is discussed,the factors that affect the observation quality are also listed.The essence conditions of the gravimeter are as follows: the monthly drift is 257.17×10-8m/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 earthquakes.
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.Whether there is a relationship between the small dislocations of the recorded curve and the earthquake is discussed,the factors that affect the observation quality are also listed.The essence conditions of the gravimeter are as follows: the monthly drift is 257.17×10-8m/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 earthquakes.
引文
[1]郝晓光,胡小刚,许厚泽,等.汶川大地震前的重力扰动[J].大地测量与地球动力学,2009,28(3):15-19,24.
[2]韦进,郝洪涛,康开轩,等.汶川地震前成都台重力的高频扰动[J].大地测量与地球动力学,2009,29(增刊):15-19,24.
[3]李杰,卢双苓,殷海涛,等.泰安重力观测高频波动信号分析[J].西北地震学报,2009,31(3):265-271.
[4]王梅,季爱东,郑建常,等.台风引起的重力扰动现象[J].地震学报,2009,31(3):641-649.
[5]杜斌,周秀忠,邓建平,等.成都地震台重力仪故障分析与排除[J].地震地磁观测与研究,2008(4):89-92.
[6]包秀敏,刘长生,马莉,等.沈阳台PET型重力仪运行概况及故障解决方法[J].防灾减灾学报,2010,26(3):77-79.
[7]赖爱京,冯英,王金萍,等.乌什地震台多分量钻孔应变观测资料干扰的初步分析[J].华北地震科学,2010,(4):51-56.
[8]苏树朋,李津津,张勤,等.易县地震台形变资料对汶川8.0级大地震的反应[J].华北地震科学,2009,(2):54-58.
[9]杨婕,占惠.厦门地震台RTP-1观测仪电源故障处理[J].华北地震科学,2009,(3):61-64.
[10]卢双苓,李峰,于庆民,等.泰安地震台钻孔应变固体潮畸变的分析探讨[J].华北地震科学,2008,26(2):49-52.
[11]赵晓燕,陈春生.重力观测技术[M].北京:地震出版社,1997:175.
[2]韦进,郝洪涛,康开轩,等.汶川地震前成都台重力的高频扰动[J].大地测量与地球动力学,2009,29(增刊):15-19,24.
[3]李杰,卢双苓,殷海涛,等.泰安重力观测高频波动信号分析[J].西北地震学报,2009,31(3):265-271.
[4]王梅,季爱东,郑建常,等.台风引起的重力扰动现象[J].地震学报,2009,31(3):641-649.
[5]杜斌,周秀忠,邓建平,等.成都地震台重力仪故障分析与排除[J].地震地磁观测与研究,2008(4):89-92.
[6]包秀敏,刘长生,马莉,等.沈阳台PET型重力仪运行概况及故障解决方法[J].防灾减灾学报,2010,26(3):77-79.
[7]赖爱京,冯英,王金萍,等.乌什地震台多分量钻孔应变观测资料干扰的初步分析[J].华北地震科学,2010,(4):51-56.
[8]苏树朋,李津津,张勤,等.易县地震台形变资料对汶川8.0级大地震的反应[J].华北地震科学,2009,(2):54-58.
[9]杨婕,占惠.厦门地震台RTP-1观测仪电源故障处理[J].华北地震科学,2009,(3):61-64.
[10]卢双苓,李峰,于庆民,等.泰安地震台钻孔应变固体潮畸变的分析探讨[J].华北地震科学,2008,26(2):49-52.
[11]赵晓燕,陈春生.重力观测技术[M].北京:地震出版社,1997:175.
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