合理使用滤波器提高激光测角仪的测角精度

Reasonably use filter to improve measuring accuracy of laser angle meter

本文通过对二阶正反馈带通滤波器的分析,阐述了在激光测角仪中所涉及的滤波器对测角精度的影响,从而为实际电路设计中准确选择滤波器参数、光调制器的设计及同步电机的选择提供了理论依据,并为有效地提高测量精度、减少误差提供了一种手段。

This paper studies second-order positive feedback band pass filter and points effect of the filter on measuring accuracy of laser angle meter. It provides a theoretical basis for determination of filter parameters, design of optical modulator and selection of motor in actual circuit design. Also it offers a way to effectively improve angle measuring accuracy and decrease the deviation.