永胜台YRY-4钻孔应变仪直流供电系统的完善改造

Improvement and Application of DC Power System for YRY-4 Borehole Strainmeter in Yongsheng Seismological Station

YRY-4钻孔应变仪是目前国际上领先的地形变观测仪器,且具有较好的防雷效果。但是在地震台站的实际应用中供电系统存在一定的缺陷。在保留原来电源独特的完全物理隔离及优秀防雷效果的基础上,云南省永胜地震台的工作人员对YRY-4钻孔应变仪防雷隔离电源进行了技术改造。改造后本电源更加安全可靠且具备了故障自动报警的功能,彻底解决了由供电引起的观测记录缺数、拖尾、掉格问题,数据质量、连续率、精度大为提高。

As the leading observation instrument for crustal deformation,YRY-4 borehole strainmeter has a better ability of lightning protection.However,some deficiency also exists in the practical application of the power system in a seismological station.Based on the original special feature of total physical isolation and the excellent anti-lightning effect,the staff of Yongsheng seismological station of Yunnan Province made more technical reform,the power of YRY-4 borehole strainmeter has been equipped with safe and reliable auto-alarm system,and totally resolved the data recording problems,such as the data missing,trailing,and drift resulting from the power system.With this improvement of the data quality,we can get higher continuous ratio and precision for the seismic data.