阅读说明：本技术 基于漂移量反馈的高稳定性纳弧度量级角度测量方法与装置 (High-stability nanoradian magnitude angle measurement method and device based on drift amount feedback ) 是由 谭久彬 石剑 于洋 于 2021-07-30 设计创作，主要内容包括：本发明属于精密测量技术领域与光学工程领域,具体涉及基于漂移量反馈的高稳定性纳弧度量级角度测量方法与装置；该装置由LED光源、凸透镜、多狭缝光阑、分光镜、转折镜、偏转镜、准直物镜组、线阵CCD、四象限位置探测器以及平面反射镜组成；该方法使两路测量光束携带被测物角度变化信息,分别在两个传感器上形成各自图像,利用该两图像位置解算出被测物相对于光轴的俯仰角、偏航角,从而具有对被测物角度变化的探测能力；具有在相同测量量程下,角度极限分辨力达到纳弧度量级的技术优势；提高系统稳定性至十纳弧度量级,解决光束漂移量限制自准直仪极限分辨力的问题。此外,本发明所设计的系统装置具有结构体积小、测量精度高、测量频响高的技术优势。(The invention belongs to the technical field of precision measurement and the field of optical engineering, and particularly relates to a high-stability angle measurement method and device with a nanoradian magnitude based on drift feedback; the device consists of an LED light source, a convex lens, a multi-slit diaphragm, a spectroscope, a turning mirror, a deflection mirror, a collimation objective lens group, a linear array CCD, a four-quadrant position detector and a plane reflector; the method enables two measuring beams to carry the angle change information of the measured object, forms respective images on two sensors respectively, and utilizes the positions of the two images to calculate the pitch angle and the yaw angle of the measured object relative to an optical axis, thereby having the capability of detecting the angle change of the measured object; the method has the technical advantage that under the same measuring range, the angle limit resolution reaches the magnitude of nanoradian; the stability of the system is improved to ten-nanometer radian order, and the problem that the beam drift amount limits the ultimate resolution of the autocollimator is solved. In addition, the system device designed by the invention has the technical advantages of small structure volume, high measurement precision and high measurement frequency response.)