RZB钻孔应变仪量程扩展的研究  

Study of the Range Expansion of the RZB Borehole Strain Meter

作　　者：吴立恒[1] 熊玉珍[1] 李涛[1] 陈征[1] 

机构地区：[1]中国地震局地壳应力研究所,北京市海淀区安宁庄路1号100085

出　　处：《大地测量与地球动力学》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)

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.

关 键 词：钻孔应变仪 千米深井 量程扩展 陶瓷马达 

分 类 号：TH762.2[机械工程—仪器科学与技术]