【摘要】 利用1/4波片作为滚转角敏感器件,提出了一种新的测量滚转角的方法。通过检测两光束的光强差的变化得到了滚转角的大小和转动方向。根据所设计的光学结构,建立了传感器测量的数学模型。介绍了该方法的工作原理及实验装置。理论分析和实验结果表明了系统的有效性和实用性。实验表明:该方法具有测量范围大、测量精度的优点,测量范围为±60′,分辨率优于0.05′。更多还原

【Abstract】 A novel and simple method of dynamical roll measurement was proposed which uses a quarter waveplate as sensitivity part.The rolling and the orientation can be gotten by detecting the differential intensity of two light beams when the stage has a roll angle with respect to the reference base.Acoording to the optic structure,the mathematical model was established by Jones matrix method.The theoretical analysis and the preliminary experimental results prove the effectivity and practicability.This performance is most advantageous in the long-distance and the high-precision measurement.Experimental results have shown that angular resolution is 0.05′ in a ±60′ range.更多还原