摘要
为使RZB型钻孔应变仪在千米深井水压的作用下能够正常工作,设计了以陶瓷马达为核心、RS485总线为基础的远程控制机构,用以补偿传感元件的初始位移,从而实现RZB型钻孔应变仪量程的扩展,并在实验室开展了10 MPa水压的模拟实验。结果显示,装有量程扩展系统的传感器在5 MPa处超量程,经量程调节后,在10 MPa处仍能正常工作。
To make the RZB borehole strain meter work normally under kilometer depth, a range ex- tension mechanism was designed. Based on a ceramic motor and the RS485 bus, the mechanism can remotely make up for the deformation caused by water pressure and achieve the goal of the range ex- tension. Some simulation experiments for up to 10 MPa pressure were performed in the laboratory, and the test results showed that： the sensor 1 was over range under the pressure of 5 MPa; after the range extension, the sensor 1 worked well under the pressure of 10 MPa.
出处
《大地测量与地球动力学》
CSCD
北大核心
2015年第3期521-524,共4页
Journal of Geodesy and Geodynamics
基金
中国地震局地壳应力研究所基本科研专项(ZDJ2013-07)
"十二五"国家科技支撑计划(2012BAK19B03)
关键词
钻孔应变仪
千米深井
量程扩展
陶瓷马达
borehole strain meter
kilometer deepth borehole
measuring range expansion
ceramic motor
作者简介
吴立恒，高级工程师，主要从事地震前兆仪器传感器的研制研究，Email：smilinglily8013@163．com。
通讯作者：李涛，硕士，助理研究员，主要从事钻孔形变观测技术研究，E-mail：lit2012@qq．com。
