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多传感器光轴平行度检校是保证线阵主被动成像载荷高精度获取地物多源数据的重要环节。设计了一种适用于该类型载荷的光轴平行度检校系统。该系统基于大口径平行光管结合辅助激光光源的方法,利用图像采集系统获得光斑中心以实现多元线阵激光收发光轴对准;同时,使用可见光线光源引出激光光轴,最终完成线阵可见光光轴与激光光轴之间的平行度检校。该系统能够实现多线阵传感器的主动探测收发光轴及主被动光轴的平行度检校,具有良好的通用性和可扩展性。
Multi-sensor optical axis parallelism calibration is to ensure that the active and passive linear imaging load with high precision multi-source data to obtain an important part. An optical axis parallelism calibration system suitable for this type of load is designed. The system is based on a large-diameter collimator combined with an auxiliary laser light source. The image acquisition system is used to obtain the center of the spot to achieve the alignment of the multi-axis laser receiving and sending optical axes. At the same time, the visible light source is used to extract the laser optical axis, Parallelism calibration between optical axis and laser optical axis. The system can realize the active detection of the multi-linear array transducer and the active and passive optical axis parallelism calibration, has good versatility and scalability.