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光纤陀螺测斜仪数据采集及传输单元设计与实现

Design and Implementation of Data Acquisition and Transmission for Fiber Optic Gyroscopes Inclinometer

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【作者】 林铁林恒高爽王蕊王基亮陈光建

【Author】 LIN Tie1,LIN Heng1,GAO Shuang1,WANG Rui1,WANG Ji-liang1,CHEN Guang-jian2(1.Institute of Opto-Electronics Technology,Beihang University,Beijing 100191,China;2.Huabei Division,China Petroleum Logging CO.LTD.,Renqiu,Hebei 062552,China)

【机构】 北京航空航天大学光电技术研究所中国石油集团测井有限公司华北事业部

【摘要】 针对基于惯性测量原理的光纤陀螺测斜仪对传感器检测数据的实时、可靠性等技术要求,设计了基于FP-GA+DSP的高速、多通道、可编程数据采集单元,实现了多传感器数据实时采集。并依据系统通讯特点,通过数模结合方法实现了以双极性归零码为编码方式的通讯传输单元。给出了采集及传输单元的软硬件设计方案。现场下井实验数据表明,该数据采集及通讯单元工作稳定、实时性好,误码率小于10-5,达到了测斜仪可靠工作的要求。

【Abstract】 For the requirements in fiber optic gyroscopes(FOG) inclinometer based on the principle of inertial measurement,such as real time,reliability for the data,a quick,multi-channel and programmable data acquisition unit has been designed,which is based on FPGA & DSP.The unit can collect data from several sensors at the same time.And a transfer device also has been implemented according to the system communication characters,which is designed by means of analog and digital technology.The hardware and software scheme of data acquisition and transmission unit is offered.The tested result shows that the unit works steadily and in real time,the Bit Error Rate(BER) of the data transmission is less than 10-5,so the unit meets the requirements of FOG inclinometer.

【基金】 国家863高技术研究发展计划项目“高精度光纤惯性组合测斜仪技术研究”(2007AA06Z101)
  • 【文献出处】 测井技术 ,Well Logging Technology , 编辑部邮箱 ,2009年04期
  • 【分类号】P631.83
  • 【被引频次】18
  • 【下载频次】312
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