763地震仪水平向拾震器抗干扰性能的探索

A research on an interference with horizontal components of 763 long-period seismogrophs

通过对攀枝花台、成都台763仪调试架设的实践,结合H763仪结构特点,分析了仪器零漂出现的原因和提高仪器抗干扰性能的方法;同时,提出了H763仪安装架设的技术指标及仪器密封方式改善的方法。

Through installation and operation of the seismographs at stations Panzihua and Chengdu,combined with the structure of the instrument,the causes of base-line shift have been analysed,and a method to improve installation is proposed in this paper.The technical specifications for installation and an improved approach for sealing were also proposed.