straightness measurement

Based on the experiences of engineering practice and teaching of Tolerance Experiment, this paper conducts comparative studies on some measurement methods of the reference line for straightness measurement, introduces concrete measurement methods and analyzes their measurement errors and applications in engineering.

在长期工程实践和从事公差实验课教学的基础上，对直线度测量的几种方法进行了对比研究，介绍了它们的具体测量方法，分析了它们的测量误差以及在工程实践中的应用。

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Atmosphere turbulence is the major factor that affects the accuracy of the propagating direction of a laser beam, and causes serious errors in laser straightness measurement at long distance.

在激光基准长距离、高精度直线度测量中，空气扰动是影响其测量精度的一个主要因素。

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This paper discusses the dynamic measurement of straightness for large scale guide rails.

讨论大尺寸导轨直线度的动态测量方法.

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as a most basic and important item of geometrical product measurement, straightness measurement is the base of many measurements such as flatness, parallelism, squareness and concentricity.

直线度测量是几何量测量领域中最基本、最重要的内容之一。它同时也是平面度、平行度、垂直度、同轴度等几何量测量的基础。

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straightness measurement is a very important content of machine manufacturing.

同时，直线度测量也是机械制造业中一个非常重要的内容。

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A Measurement Method of Gun Barrel Axes Straightness Based on Image Processing

基于图像处理的炮管轴线直线度检测方法

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analyzing characteristic of the cube-corner retroreflector applied to laser straightness measurement

角锥棱镜用于激光直线度测量的特性分析

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The application of Error Separation Techmique or EST to the on-line measurement of straightness error with three-point method is studied.

对三点法误差分离技术（EST）应用于在线测量直线度误差进行了研究，并在推导数学模型的基础上进行了仿真计算。

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Harmonic suppression, non periodic and non closing in straightness profile error that bring about harmonic component distortion in slide error motion measurement are analyzed in detail.

分析了经典频域三点法测量直行部件运动误差时所存在的谐波抑制，直线度误差的非周期性、非封闭性以及端点不连续而引起的高阶谐波分量失真等方法误差。

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After theoretical analysis, system construction, experimental verification and error analysis, the thesis argues that the method has fair value for practical use, and the system based on this scheme possess of advantage in the great length Guide-ways straightness measurement.

本文通过理论分析、系统搭建、实验验证以及测量误差分析等一系列工作，论证了该系统具有一定的实用价值，基于该方案的系统在大长度导轨直线度测量中具有一定的优越性。

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