立体角

We derived Gauss law and Ampere circuital theorem using the concept of solid angle.

用立体角概念和计算式导出高斯定律、安培环路定律，并举实例说明对具有一定对称性的静电场与恒定磁场的场强分布可以较简捷地求

Using the continued fraction method other than the traditional recurrence methods to generate the Bessel function, we built an accurate code for calculating the Mie scattering.

2利用Mie散射模式计算气溶胶散射相函数的展开式系数，直接提供逐次散射计算中所需要的立体角积分网格上的相函数，避免为获得相函数而进行内插。

Speckle is also the fundamental uncertainty factor in this kind of sensors. The analytic expression of centroid uncertainty limit is derived from the statistic of laser speckle, and it is shown that the uncertainty limit in RST, and also in anamorphic triangulation, is dependent on the solid angle subtended by entrance pupil as seen from the illuminated laser spot, the triangulation angle, as well as the laser wavelength. The influence of aberration of optical system and surface roughness are also discussed.(4) A method of getting the 3D edge characters based on the integrated vision system is studied.

重点研究了RST中的激光散斑现象，从散斑统计学的角度，首次推导了激光散斑引起的旋转对称三角法位移测量不确定度的极限，结果表明在光学粗糙表面上，该极限由投射激光波长，光学系统入瞳对投射光斑所张的立体角，以及光学系统主光轴与旋转轴的夹角确定；这一结论同样适用于其他变形成像的激光三角法。4基于RST的工作方式，研究了利用集成视觉系统的扫描移动来获得被测物体的低分辨率三维信息的方法。

With a CCD camera and a frame grabber to capture the laser spot, the digital image is transferred to special software for further processing, the amount of the laser spot drift can be achieved. The amount of the drift in X direction, Y direction and in spatial angle can be obtained through geometrical optics.

它采用CCD摄像头和图像采集卡采集激光器输出光斑，通过专门软件对数字图像进行处理，得出光斑漂移的大小；另外，利用几何光学方法得到了激光光束在X方向、Y方向以及空间立体角上的漂移大小。

Low energy secondary radioactive nuclear beam Inverse kinematics reaction Full solid angle detection Pileup rejection

低能次级放射性核束；逆运动学反应；全立体角探测；脉冲堆积

The scheme makes use of strict collimation of the beams, full solid angle detection of the reaction products with a x y position sensitive ΔE E counter telescope, mixing trigger and pileup rejection to carry out the measurement of angular distribution under low beam intensity.

采取次级束的严格准直、反应产物的两维位置灵敏全立体角探测、抗脉冲堆积和混合触发电子学线路等一系列措施，成功地实现了低流强条件下反应角分布的测量。

By using a coherent state method,we prove that the geometric phase of the spinor in rotating magnetic fields to be one half of the solid angle that the spinor states sweep.

运用相干态方法，本文证明了中子在旋转磁场中的几何相位是粒子态矢量在态空间中扫过的立体角的一半，同时提供了一种几何相位在周期演化中的简单算法。

The wavelength converting element 110 emits light with a wide solid angle.

波长转换元件110发射具有较宽立体角的光。

Each cube corner element includes a base triangle bonded by one groove from each of the three intersecting groove sets, the base triangle being scalene.

各立体角元件包括由三组相交槽中的每一组槽中的一个槽构成的底部三角形，该底部三角形是不等边的。

First of all, a new solid angle ray-tracing simulation with its three-dimension soundray model is proposed here.

首先，在理论上提出了一种新的声线模拟计算方法——立体角算法和相应的声线三维模型。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失