基于除法电路的工具面角模拟解算  

Analog Computation of Tool Face Angle Based on Dividing Circuits

作　　者：蔡贝 程为彬 刘峰 高理 魏娜 

机构地区：[1]陕西省油气井测控技术重点实验室,陕西西安710065

出　　处：《自动化技术与应用》2017年第5期77-81,共5页Techniques of Automation and Applications

基　　金：国家自然科学基金(编号61174191);陕西省科学技术研究发展计划(编号2011k06-27);陕西省教育厅产业化培训项目(编号2013JC08)

摘　　要：目前井下工具面角测量普遍存在解算误差大的问题,基于测量仪器输出信号与姿态参数间的三角函数关系,研究并设计一种除法电路,从而实现工具面角的模拟解耦与计算。利用离散方法对电路进行45°定井斜和0至90°范围内变井斜测试;并针对输出角度在85°至90°范围内解算误差大的现象,采用不同井斜角进行了连续测量。得出测试电路的解算误差较小,最小误差仅为0.098°,且最大误差保持在0.5°以内。The downhole tool face angle measurement accuracy is of great errors. So this article is based on measuring instrument of trigonometric function relationship between output single and attitude parameters, researches and designs a kind of division circuit to implement the decoupled simulation and calculation of tool face angle. Discrete method is used to analyse the circuit of 45°inciination and within the scope Of 0-90° deviation test. And in view of the output angle calculating with 85°- 90°of the phenomenon of the great error, uses different inclinations to achieve continuous measurement. It is obtained that the circuit calculation is of low error, the minimum error is only 0.098° and the maximum error is kept within 0.5°.

关 键 词：工具面角 模拟解算 除法电路 解算误差 

分 类 号：TP274.2[自动化与计算机技术—检测技术与自动化装置]