新型测斜仪测量误差分析

在地下勘测，钻井探矿等领域，需要测斜仪对钻头的姿态进行精确定位与控制，实时监测地底下钻头的姿态变化。新型测斜仪采用环形双分量磁通门传感器和铁芯不固定的方法，具有结构简单，测量参数少，算法简单，正交度补偿算法简单等特点。但是新测斜仪在测量过程中，受到外界的误差干扰和内部传感器的安装设置误差等问题的干扰。本文针对新型测斜仪的传感器模型和电路设计方面，进行了新型测斜仪的测量误差原理分析，应用合理的电路设计减少电气间电磁干扰误差、应用了软件正交校正及物理校正的方法，有效的抑制了测斜仪传感器本身的姿态误差，提高了测斜传感器的测量准确度。

The Analysis of the Measurement Error for the New Clinometer

In the underground survey,drilling exploration and other fields,the inclinometer is need to pose for bit accurate positioning and control,and for monitoring ground drill attitude change.The new inclinometer by the meth?od of using ring double component fluxgate sensor and the unfixed iron core,has the advantages characteristics of simple structure,less measurement parameters,simple algorithm,simple orthogonal compensation algorithm.But in the process of measurement by the new inclinometer,the measurement is interfered by the outside error interference and internal sensor setup-error etc.. According to the model of the inclinometer sensor model and circuit design, the measurement error of principle of a new type of inclinometer is analyzed in this paper. The electromagnetic inter?ference is reduced by application reasonable method of circuit design. The attitude error of measuring inclinometer sensor itself is effectively inhibited by application software orthogonal correction and physical correction.The mea?surement accuracy of the inclinometer sensor is improved.