This paper presents a specifically designed grating-corner-cube sensor for precise roll angle measurements. Owing to the diffraction characteristics of the transmission grating and reflection characteristics of the corner cube, two spatially separated parallel beams are naturally constructed. Through differential detection of the positions of two parallel beams, we experimentally demonstrate the possibility of a precise roll angle measurement at a high refresh rate. A performance evaluation of the proposed technique indicates a stability of 0.46 arcsec over 5 min. Compared with a commercial autocollimator over a range of 500 arcsec, the residuals are maintained within ±2 arcsec with a standard deviation of 1.37 arcsec. Furthermore, a resolution of 0.8 arcsec can be achieved using the proposed method. The developed compact roll angle sensor has potential applications in academic and industrial fields.

中文翻译：

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基于角形立方体的侧倾角传感器

本文提出了一种经过特殊设计的光栅角立方传感器，用于精确的侧倾角测量。由于透射光栅的衍射特性和角锥棱镜的反射特性，自然会构造出两个在空间上分离的平行光束。通过差分检测两个平行光束的位置，我们实验证明了以高刷新率进行精确的侧倾角测量的可能性。对提出的技术的性能评估表明，在5分钟内的稳定性为0.46 arcsec。与商用自动准直仪相比，在500 arcsec的范围内，残差保持在±2 arcsec之内，标准偏差为1.37 arcsec。此外，使用所提出的方法可以实现0.8 arcsec的分辨率。