最小偏向角

In comparison with the angle of minimum deviation, the errors are analyzed and the correcting method for the temperature affect is given.

验证实验中，着重就与最小偏向角测量法的对比情况进行了介绍，分析了测量误差，推导了调整误差，样品加工误差对折射率测量的影响，并对环境，特别是温度，的影响进行了讨论，给出了影响曲线及补偿方法。

Measurement of refractive index of the crystal with angle of minimum deviation method .

用棱镜最小偏向角法测量晶体折射率。

The method of minimum deviation angle ; the method of V-prism ; measure accuracy ; principle formula error

最小偏向角法； V棱镜法；测量精度；原理公式误差

The principle formula error of measuring the refractive index by the method of minimum deviation angle and the method of V-prism .

最小偏向角法V棱镜法测量折射率的原理公式误差。

Based on the method of minimum deviation angle, man can obtain the accuracy of measuring refractive index of glass at 3×10-6 with fine apparatus for measuring angle, but the classical princip1e formula quoted by these literatures have principle formula error about 4 ×10 - 4 order which lead to an erroneous measure result.

在这些测量折射率的方法中，最重要的是最小偏向用法和V棱镜法。推导最小偏向角法和V棱镜法的所有文献都沿用经典的原理公式，而这些经典的原理公式没有考虑到空气实际折射率对被测试样折射率的影响。

In this paper we have point out the error of principle formula quoted by all literatures at home and abroad to measure the refractive angle and the method of V-prism, derive from beginning the right formula of measuring refractive index by the method of minimum deviation angle and the method of V-prism.

本文指出了测量光学材料折射率的最小偏向角法和V棱镜法国内外所有文献的原理公式误差，重新推导了最小偏向角法和V棱镜法测量折射率的正确公式。基于最小偏向角法用精密测角仅可以获得±3×10-6的折射率的测量精度，然而，这些文献沿用经典的测量原理公式却具有-4×10－4数量级的原理公式误差，因此导致错误的测量结果。

the conditions of acquisition of minimum deviation is proved by means of rolle's theorem and the reversibility principle of beam path for triple prism, it is that the angle of incidence is equal to the angle of emergence for monochromatic incident beam.

利用数学中的罗尔中值定理及光路的可逆性原理证明了三棱镜获得最小偏向角的条件，即单色光线的入射角等于出射角。

The results show, when the prism wedge angle is 4°, the transmitted laser beam changes about 1 μrad as the prism rotates 1′; when the small angle deviation on one side of the minimum deviation angle of each prism is controlled, the scanning range of laser beam in the horizontal and vertical direction is not less than 500 μrad, and the scanning precision of the device is superior to 0.2 μrad.

结果表明：取棱镜棱角α为4°时，棱镜每旋转1′，透射光束变化约1 μrad；分别控制双棱镜在其最小偏向角一侧小角度偏转，可以实现光束在水平方向和垂直方向500 μrad范围内的精确扫描，装置的扫描精度可以达到0.2 μrad。

First, for the different molar ratio of two monomers mixtures,the different molar ratio of homogeneous polymer is obtained by choosing the proper condition(the reaction temperature is 60℃-70℃, initiator benzoyl peroxideis 0.1wt%- 0.2wt%)from carrying out bulk copolymerization and its refractive index has been measured respectively by the method of minimum deviation angle.

首先，对不同摩尔比值的两单体混合液，选择适合的工艺条件(共聚温度60℃-70℃，引发剂过氧化苯甲酰0.1wt%-0.2wt%)进行本体共聚反应，获得各摩尔比值下的匀质聚合物；并用最小偏向角法分别测量了由系列匀质聚合物制作的三棱镜的折射率。

In order to measure accurately the refractive index of optical glass to improve the imaging quality of optical systems,several measuring methods of refractive index for optical glass were analyzed and both foreign and domestic development situations for optical glass measurement were introduced.

为准确测量光学玻璃的折射率，提高光学系统成像质量，介绍了现有光学玻璃折射率测试方法和国内外发展现状，提出了一种利用测量棱镜3个顶角所对应的3个最小偏向角的折射率测量新方法。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。