准直仪

Measurement of Monochromator′s Angle Repeatability by Phase Plate Diffraction Collimation Method.

单色仪转角重复精度的相位板衍射准直方法测量。

In plotting scene, the invention connects fiber-optic gyro(1) with full station instrument telescope(3) by adaptor(2), and make optical fibre gyro can follow full station instrument telescope simultaneously do 180 degree turning reel full station instrument cross shaft, respectively on two horizontal positions of east and west direction of gyro axis that differ by 180 degree; each horizontal position process 2 x 2 position gyro data acquisition on full station instrument perpendicular tray that differ by 180 degree; using formula to count out full station instrument collimation axis true azimuth, survey station meridian convergence angle, then can obtain full station instrument collimation axis grid azimuth, realize full station instrument orient.

基于光纤陀螺的全站仪组合定向方法是一种应用于测绘工作的基于光纤陀螺的全站仪组合定向方法，该方法在测绘现场，把光纤陀螺(1)通过连接装置(2)与全站仪望远镜(3)固连，使光纤陀螺(1)可随全站仪望远镜(3)绕全站仪横轴(4)同步做180度转动，分别在陀螺轴东西向相差180度两个水平位置，每个水平位置在全站仪竖盘相差180度的两个竖直位置进行2×2位置陀螺数据采集；利用公式算得全站仪视准轴真方位角、测站子午线收敛角，即可进一步获得全站仪视准轴坐标方位角，实现全站仪定向。

If the collimator cross hair does not center or does not lie at all in the video window, the additional optics

如果瞄准仪的十字叉丝不在中央或者不在全视场，附带的自准直光学系统可依靠测微螺旋来调节。

These results testify the method of in-situ non-destructiveness measurement in decommission nuclear facilities with HPGe Y instrument shielded. And this thesis have as follows characteristics:?

以上这些结果表明此套准直了的HPGe γ潜仪系统在退役现场采用非破坏性定性、定量的分析方法是可行的。

The position and size of the monochromator, focusing curvature radii and tilting angles of the germanium focusing monochromator under different different take-off angle, size and divergency of the second collimator and intensity loss due to the use of it were determined. The neutron flux at different wavelength, under different reflection and take-off angle of the monochromator and divergency of the first collimator, were given. The simulation on the aperture used for limiting beam size in front of the sample showed that, smaller the size of the aperture and further the distance from the aperture to the sample, greater the loss of the intensity and more serious the spread of the beam along vertical direction at the sample position which makes the practical sampling volume greater than expected.

用蒙特卡罗模拟方法对中子应力衍射谱仪的设计方案进行了优化研究，提出了一系列可供参考的数据：确定了单色器的位置、尺寸、垂直聚焦单色器在不同起飞角下的聚焦曲率半径和倾角；讨论了第二准直器的尺寸和发散，以及使用第二准直器造成的强度损失；给出了在不同单色器反射面、起飞角、中子波长和第一准直器发散度的情况下样品处的中子注量率，以及多种组合情况下谱仪的分辨率曲线；对限束方孔的尺寸、距离样品远近对强度损失和测量中的影响做了深入研究。

Beamline is an important part of synchrotron radiation facilities. It is mainly composed of monochromator, collimating mirror, focusing mirror.

光束线是同步辐射装置的重要组成部分，主要由单色仪、准直镜和聚焦镜组成。

The visualization biological chip in this invention can make the sample simultaneously accept the high efficiency laser source and uses CCD cameral select the fluorescence image of the biological chip rapidly with large area for further analysis.

本发明的显像式生物芯片仪利用准直透镜使镭射光源产生大面积的镭射光激发光源，使得各样品点同时接受高效能的激发光源，此外利用CCD相机大面积而快速的选取生物芯片的荧光影像再进行分析，可以大幅减少分析时间。

Due to the TomoTherapy machine intrinsic characteristics, some mechanical items, such as the gantry, the couch angle, the collimator etc., do not need to be checked. Additionally, no electron beam verification is needed but the same beam effect can be formed from the different beamlets of the machine.

再者，由於多模式螺旋断层放射治疗仪机器的本质结构特性，有些品质保证测量项目不须实施，如在机械方面不须要做旋转臂、治疗床、准直仪之品质保证测量校正工作，所以在例行的品质保证测量工作上较为简单；此外因多模式螺旋断层放射治疗仪只有单一光子射束(6MV)，而没有电子射束所以在品质保证量测上不须测量电子射束，因而简化许多程序，但电子射束的特性可以由不同的小射束组合来达到相同的效果。

The autoaligment instrument and accuracy turntable with digital display are used to detect the step angle after 32 subdivision, and the experiment results are given, the mean-square error of step angle after 32 subdivision is less than 3.7%.

为了检测32细分后的步距角，采用了自准直仪加精密数显转台的光学测量方法，并给出了实验结果，32细分步距角的均方误差不大于3.7％。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。