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折转光管广泛应用于舰船、车载等光电测量系统中,在方位基准传递过程中,光路在高度上产生折转,入射光与出射光在方位上保证相互平行,从而实现方位基准的保精度传递。对于长度小于1m的折转光管多采用平面镜法或水银盘法检测其光轴平行性,但对于长度大于3m的折转光管,采用上两种检测方法则不能满足其精度指标要求。为此,提出了对于3m长度的折转光管光轴平行性检测的一种新方法,此方法适用于长度大于3m的折转光管光轴平行性的检测。
Reversible light pipe is widely used in photoelectric measuring systems such as ships and vehicles. In the process of azimuth reference transmission, the light path is folded in height, and the incident light and the emergent light are mutually parallel in azimuth so as to achieve azimuth-based guarantee Accuracy delivery. For the length of less than 1m of the multi-use flip-flops or mercury plate method to detect the optical axis parallelism, but the length of more than 3m of the flip light pipe, the use of the two detection methods can not meet the accuracy requirements. For this reason, a new method for detecting the parallelism of the optical axis of a 3m-length bent light pipe is proposed. This method is suitable for the detection of the parallelism of the optical axis of a bent light pipe longer than 3m.