【摘要】 本文提出了一种多位移传感器在线检测方法,即采用多个激光位移传感器快速动态的测量若干被测截面型面点,并通过两点法误差分离算法计算得到对应轴心空间坐标的测试方法。该方法成功的解决了钻杆检测中圆度误差分离的难题。还搭建了一个钻杆多位移传感器在线检测实验平台,并研究了周向旋转装置的误差补偿。最后给出了实验结果,证明该检测方法具有非接触、效率高、精度好的特点,完全适用于钻杆全自动压力矫直机的在线检测。更多还原

【Abstract】 This study proposes a kind of new method for drill stem’s on-line measuring. In this new method, we firstly measure some revolving sections by multiple laser displacement sensors and then acquire those sections’ axle center coordinates by two-point method. This new method solves the problem of roundness error separation in drill stem’s on-line measurement successfully. Further more, an experimental table was put up by this new method and the error compensation was analyzed about this table’s revolving organization. Finally, the experimental result indicates this new method possesses the advantages of non-contact, high efficiency and moderate precision, so it adapts to be used in automated pressure straighter for drill stem’s on-line measurement.更多还原