几何测量法检定铁路罐车容积重复性试验和计量标准稳定性考核

Assessment on Repeatability Test and Measurement Standard Stability of Calibrating Railway Tank Car Volume Based on Geometric Metrology

对于国家强制检定的计量器具,其检定结果的重复性试验和计量标准的稳定性考核是技术考核中的重要内容。对于采用几何测量法检定铁路罐车容积的计量标准"铁路罐车容积检定装置",以G11模型铁路罐车为被测对象,通过制定方案、开展试验、判定结果,完成了"铁路罐车容积检定装置"检定结果的重复性试验和计量标准的稳定性考核。该方法可为其他建标单位计量标准和其他中大容量计量标准的重复性试验和稳定性考核提供参考。

For measurement Instrument applicable to national compulsory calibration. An assessment on the repeat-ability test and measurement standard stability of its verification results is an important part of technical assessment.For the measurement standard＂Railway Tank Car Volume Calibration Equipment＂,which calibrates railway tankcar volume based on geometric metrology, G11 railway tank car is taken as the tested object. By developing ascheme,conducting the tests and determining the results,the article completes the assessment on the repeatabilitytest and measurement standard stability of the calibration results from the railway tank car volume calibration equip-ment. Such a method can provide references for the measurement standards developed by other standard developersas well as for the assessment on repeatability test and stability of measurement standards for other large or medium-sized volumes.