1) collimating system
准直系统
1.
A laser collimating system supplies a base line which is used for coaxiality measure- ment.
激光准直系统的研制是为了提供大轴同轴度测量中需要的一条基准直线。
2.
A combination of microscope and collimating systems is designed for the monitors to make them possess the abilities of measuring target positions and collimating synch.
设计了正八棱柱模拟靶对靶场坐标系进行标定;设计了由显微和准直系统相结合的监测仪光学系统,使监测仪同时具有测量靶位和准直的功能。
3.
In a collimating system formed by a pair of quarter pitch gradient index rod (GRIN) lenses, there exist three kinds of assembling misalignments: lateral offset, longitudinal separation and angular tilting.
一对1/4节距自聚焦棒透镜构成的准直系统通常存在三种装配误差:错位、间隔和倾斜,由此产生一定的附加耦合损耗。
2) collimation system
准直系统
1.
Optimum design for high precision laser beam collimation system of free-space laser communication;
光通信中高精度激光束准直系统优化设计
2.
Based on the law of refraction in vector form,the laser beam propagation in an aspheric and asymmetrical laser beam collimation system from high-power semiconductor laser has been researched for spatial laser beam long-distance propagation.
为实现空间激光束的远距离传输,利用矢量折射定理研究了大功率半导体激光器发散光束经非球面、非轴对称准直系统的光传输特性。
4) laser collimation system
激光自准直系统
1.
In order to improve the measuring and tracking precision of photoelectric theodolite,a set of CCD laser collimation system is used for measuring the deformation of the platform in real time.
为了提高经纬仪的测量和跟踪精度,采用了一种CCD激光自准直系统对光电经纬仪车载平台变形进行实时测量;对测量系统的精度进行了分析,其精度很大程度上取决于CCD图像传感器输出信号的精度;研究了影响CCD精度的各种因素,并对CCD图像进行消噪处理,结果表明CCD图像的质量明显提高,从而提高了CCD激光自准直系统的测量精度。
5) Collimating and beam expanding system
准直扩束系统
6) laser collimation system
激光准直系统
1.
A signal processing circuit for improved 2D-PSD including high-precision,low temperature excursion and high input impedance preamplifier,summator,subtracter and divider is used in high-precision laser collimation system.
采用高精度低温漂高输入阻抗的前置放大器、加法器、减法器、除法器等元器件设计了一种改进型2D-PSD的信号调理电路,用于高精度的激光准直系统中。
补充资料:激光准直仪
激光准直仪
laser collimator
iiguang Zhunzhiyi激光准直仪(laser Collimator)利用激光束标定直线的仪器。通常由激光发射系统和光电检侧系统组成。其原理是:利用激光的方向性好、发散角小、亮度强等特点,通过望远镜作定向发射,在空间形成一条光束作为准直的墓准线。分为激光经纬仪准直和波带板激光准直。激光经纬仪准直,由望远镜发射器和光电检测器(光电接收靶)组成。激光通过望远镜发射,调节焦距使光束能在接收靶上形成较小的光斑,在需要准直的点上用光电检测器观测光斑能量中心,以测定各点偏离基准线的偏差值。激光束受本身的漂移和大气条件的影响,准直精度约为长度的10一5一10一“。用于军用坑道和飞机洞库等地下工程开挖、管道敷设、建筑物施工等。波带板激光准直仪,由激光器点光源、波带板装置与光电接收靶组成。测量时,在基准线两端点上分别安置激光器和接收靶,在中间需要准直的点上安置波带板,激光器l掖光源发射出一束激光,照射到波带板,在接收处由于光干涉作用聚焦形成亮点或亮十字线。根据光的衍射原理,激光发射中心、波带板中心及成像光斑中心将构成一条直线。三点准直克服了漂移,能提高准直精度,若让激光束穿过真空管道,还可克服大气折射影响,准直精度达长度的10一7。用于军事工程长距离精密准直测量,例如导弹发射用的火箭橇轨道、高能粒子对撞机直线加速器、大型机械设备轴线安装及建筑物变形观测等。 (于来法)
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参考词条