我国763型光记录长周期地震仪系统

本文介绍我国自行研制的一套三分向检流计记录地震仪。仪器系统是按世界标准地震仪台网（WWSSN）长周期地震仪特性设计,并在北京、牡丹江、乌鲁木齐、佘山、泰安等地震台运转了一定时期,获得了许多过去的仪器记录不到的宝贵资料,为进一步开展地震及地球内部构造的研究工作提供了必要的观测手段。

THE LONG PERIOD SEISMOGRAPH TYPE 763

A matched three-component long period seismograph with galvanometer recording is described in this paper. The response of such a system is designed in accordance with that of the long period seismograph at WWSSN.Many data had been obtained with this type of instruments operating in BJI, MDJ, WMQ, SSE, TIA stations. The records indicate that Type 763 LP Seismograph have contributed to seismological research and internal structure of the Earth by providing increased sensitivity in longer period range than 50 sec. uncovered by using other seismographs in our country.