Phenomena and Analyses of Instrument Failures of Type 3066 Pen Recorder at Xiamen Seismostation
Yang Jie · South China Journal of Seismology · 2009
It is the responsibility of observers to assure that instrument runs normally and continuously.Aberration appeared in analog record curves of the vertical pendulum of Xiamen Seismostation in succession recently.In this paper,the cause of interference is investigated by comparing digitized records and analog recorder curves,and it is believed the interference probably arises from the effect of static electricity upon the analog recorder.But there also are probably other interference factors,which need further observation and study.