摘要
本文从另一角度推导出水平摆最佳工作位置的计算公式,介绍运用“水平摆倾斜仪精确定向法”对我国65个地震台水平摆工作位置检测及重新调整的概况,并对精度进行了分析。结果表明,以往这些台站的资料约有60.3％是在摆杆偏角超限状况下观测到的。经重新调整后,仪器工作状况均符合《地倾斜台站观测规范》的要求,取得了良好效益。文章还给出任意角坐标旋转公式,以便将以往地倾斜观测资料归算至南北、东西方向,从而利于分析及资料交换之用。
In this paper, the formulae for calculating the best operational position of horizontal pendulum are derived at a new angle. The situation that the operational positions of horizontal pendulums on 65 seismological stations of China are detected and readjusted by 'the method of accuracy orientation of horizontal pendulum tiltmeter' is described, and the precision is discussed also.The result shows that average deflection angle of true operational position of horizontal pendulums from their best positions reachs 1.093,and that 60.3% of the previous data are observed in the case of the horizontal pendulum deviations angle going beyond the limit.After readjusting,the running state accords with th demands of 'standard of tilt observation station', and the better effect was taken.In order to analysing and exchanging the data,the previous data are reduced into the NS direction and EW direction, by using the formulae (9) given in this paper.
出处
《地壳形变与地震》
CSCD
1990年第4期55-63,共9页
Crustal Deformation and Earthquake
