介绍了一种小孔扫描测量大数值孔径光学系统小光斑的方法。
This paper introduced a method to testing small light spot produced by an optical system with high NA.
三维姿态测量系统中，由激光器发出指示光束，照射至二边的屏幕上，由屏幕上的光斑位置反映出目标的各姿态角。
In the system of tridimensional attitude measurement, the laser beams laser beams, and then shoot to the screen and the attitude of object can be calculated by the light-spot on the screen.
激光远场光斑测量对描述激光束的远场性能，评价激光器以及系统的实际工作性能具有重要意义。
It is very important to measure the laser spot energy distribution in the field for describing the laser beam performances and evaluating the lasers and operational performances.
测量系统基于PSD传感器的光斑定位原理。
The measurement system is based on facular-orientation theory of position sensitive detector (PSD).
激光光斑位置的准确确定是决定测量系统精度高低的关键因素，所以激光光斑中心的定位就显得尤为重要。
Laser spot center detection is the key factor for evaluating a surveying system, so that the calculation of the laser spot center must be tarnally important.
传统的各种测量方法缺乏对光斑外观轮廓的直观多维显示和对参数的系统测量分析。
The traditional measuring methods lack multi-dimension display for laser spot profile and systematic analysis for laser parameters.
考虑在主轴上放置透明盘片，用PSD测量位移子系统测出放置透明盘片前后的光斑移动距离，就可以计算出光头与主轴马达间的平行度。
Using the transparence CD, PSD can detect the displacement of laser spot between non-placing and placing the CD, and it can be used to calculate the parallelism between optical head and spindle motor.
考虑在主轴上放置透明盘片，用PSD测量位移子系统测出放置透明盘片前后的光斑移动距离，就可以计算出光头与主轴马达间的平行度。
Using the transparence CD, PSD can detect the displacement of laser spot between non-placing and placing the CD, and it can be used to calculate the parallelism between optical head and spindle motor.
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