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介绍了石油测井深度光电编码器测量系统的测量原理、系统组成以及电路分析，同时在对系统误差分析的基础上给出了具体校正方法。
The measurement principle, system composition and circuit analysis of oil well logging optical encoder measurement system are introduced. At the same time, the specific correction method is given based on the analysis of system error.