平行光管主要是用来产生平行光束的光学仪器，是装校调整光学仪器的重要工具，也是光学量度仪器中的重要组成部分。
n. collimator
misc. collimating device
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According to the above requirements, a kind of integrated measurement system for FOT characteristic parameters is proposed, which is based on single integral sphere - collimator tube - CCD camera.
针对上述需求,本课题开发了一种基于单积分球——平行光管——CCD相机的光纤光锥光学特性参数综合测量系统。
参考来源 - 光纤光锥光学特性研究与测试·2,447,543篇论文数据，部分数据来源于NoteExpress
平行光管是光学实验及计量检测的重要设备。
The collimator is an important equipment for optical experiment and standardization.
以平行光管和23面棱体为基准，得到存在偏心误差的一组光栅角编码器测量数据。
With a collimator and a 23 polyhedron as measuring datum, a set of optical angular encoder measuring data, which containing the eccentricity error, was obtained.
在相机拍照曝光时间内，尺形分辨率板运动至平行光管的视场内，以模拟无限远动态目标。
The dynamic object should arrive at the view field of the collimator in the camera exposure time to simulate infinity object.
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