齿廓偏差；有效长度； 起测点；终测点；
Tooth profile deviation; Effective length; Initial point; End point;
并以某渐开线圆柱齿轮为例计算齿廓偏差，计算结果表明，该方法正确、可行。
By taking an involute cylindrical gear as an example, the tooth profile deviation is calculated. The results show that the method is correct and feasible.
因齿距偏差测量技术已经很成熟，所以本论文的在位测量主要定位于检测齿廓偏差和螺旋线偏差。
Because pitch deviation measuring technology is very mature, the main research objective of this thesis is laid on the checkout of profile deviation and helix deviation.
按照新的国家齿轮标准规定，对于单个齿轮必须检验三个偏差项目：齿廓偏差、螺旋线偏差和齿距偏差。
According to the new national gear standard, three deviation-measuring items must be included in the checkout of single gear: profile deviation, helix deviation and pitch deviation.
以刃边齿条为工具，测量廓面的直母线族误差，通过误差处理与分析获得齿廓总偏差和螺旋线总偏差。
Taking the straight-line-rack as the tool the error of straight generatrix is measured and by error analysis the tooth profile error and tooth orientation error can be obtained.
采用刃边齿条测头，测量齿轮廓面的直母线偏差，通过误差分析分离出齿廓总偏差和螺旋线总偏差。
Adopting the engaging process of the measuring rack - probe, the error of straight generatrix is measured, and by error analysis, the tooth profile error and tooth orientation error can be obtained.
采用刃边齿条测头，测量齿轮廓面的直母线偏差，通过误差分析分离出齿廓总偏差和螺旋线总偏差。
Adopting the engaging process of the measuring rack - probe, the error of straight generatrix is measured, and by error analysis, the tooth profile error and tooth orientation error can be obtained.
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