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| The Effect of Temperature Change on Gear Measuring Accuracy |
| YANG Guo-liang1,XUE Zi1,LIU Chun-jie2,LIN Hu1 |
1. National Institute of Metrology, Beijing 100029, China;
2. Instrimpex International Tendering Corporation, Beijing 100055, China |
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Abstract As one of the main effect factors in the process of precision measurement for the geometric quantities, temperature accounts for much more in the evaluation of measurement uncertainty.The temperature effects on profile slope deviation,helix slope deviation and tooth thickness deviation are analyzed through typical example,and the geometric relationship between the temperature change and the measurand of master gears is established,meanwhile the effect on the temperature change and measurement results of the gears with different dimensions is also proved.The necessity of improving gear measuring conditions is clarified,and theory evidence on the analysis for precision gear measurement is provided,which is contribute to the different Labs to determine measurement conditions based on gear accuracy grades.
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2014, Vol. 35 
