The optical properties of doubling the measurement accuracy using the cube-corner retroreflector which is applied to laser straightness measurement are analyzed in theory.
对角锥棱镜用于激光直线度测量时可使测量精度提高一倍的光学特性进行了分析。
Moreover, straightness of tens of microms can be measured and an accuracy of a fraction of a micron is readily given by coarse grating.
用它可测数十米物体的直线度，使用粗光栅即可容易地达到微米以下的精度。
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。
The advantages of the method are that its accuracy is not dependent on the straightness of the laser beam and stability of the laser itself.
此方法优点在于测量精度并不取决于激光束的直线度及激光器本身的稳定性。
At present, long optical flat is still mainly adopted as calibrating benchmark in straightness measurement, whose accuracy is not so high (especially in measuring great-size parts).
我国目前主要仍采用长平晶组分段互检方法作为直线度检定基准，测量精度不高(特别是在测量大尺寸零件时尤为明显)。
At present, long optical flat is still mainly adopted as calibrating benchmark in straightness measurement, whose accuracy is not so high (especially in measuring great-size parts).
我国目前主要仍采用长平晶组分段互检方法作为直线度检定基准，测量精度不高(特别是在测量大尺寸零件时尤为明显)。
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