超短基线伸缩仪的研制  

DEVELOPMENT OF ULTRA-SHORT BASELINE EXTENSOMETER

作　　者：李家明[1,2,3] 姚植桂[1,2] 张卫华[1,2] 梅建昌[1,2] 

机构地区：[1]中国地震局地震研究所,武汉430071 [2]地壳运动与地球观测实验室,武汉430071 [3]中国地震局地壳应力研究所武汉创新基地,武汉430071

出　　处：《大地测量与地球动力学》2009年第4期144-147,共4页Journal of Geodesy and Geodynamics

基　　金：地震科学联合基金(A07028);国家自然科学基金(40774025);中国地震局地震研究所所长基金(1367)

摘　　要：介绍USBE-1型超短基线伸缩仪总体设计思想、整体结构和主要部件的工作原理及台站试验情况。试验结果表明,由于开发了密封结构的高精度电容微位移传感器,缩短了仪器基线长度,在不大于1 m条件下也能记录到清晰的应变固体潮汐,满足了较小的工作空间及地震应急监测等需要。The design idea, the overall structure and the principle of operation of main components of extensometer of USBE-1 type and the test at stations are introduced. Test results show that thanks to the development of a sealing structure of high-precision capacitance sensor for micro-displacement the length of instrument baseline can be shortened greatly for example, to not more than 1 m and it can record the clear response to the solid tides, so can meet the small space and requirement for earthquake emergency.

关 键 词：伸缩仪 超短基线 电容传感器 固体潮 地震监测 

分 类 号：TH762.2[机械工程—仪器科学与技术]