铁道技术监督
鐵道技術鑑督
철도기술감독
2011年
11期
14-16
,共3页
周宝珑%傅青喜%邵学君%闫凤霞%丁建兴
週寶瓏%傅青喜%邵學君%閆鳳霞%丁建興
주보롱%부청희%소학군%염봉하%정건흥
计量%罐车%几何测量法%不确定度%评定
計量%罐車%幾何測量法%不確定度%評定
계량%관차%궤하측량법%불학정도%평정
Metrology%Tank Car%Geometric Method%Uncertainty%Evaluation
对采用几何测量法检定的液化气体铁路罐车容积进行不确定度评定,建立数学模型,确定灵敏系数,从内竖直径测量、内横直径测量、内总长测量、封头容积和筒体变形等方面评定该方法的标准不确定度。几何测量法检定结果的扩展不确定度为3.2×10-3（k=2）,满足液化气体铁路罐车容积检定规程的计量性能要求。
對採用幾何測量法檢定的液化氣體鐵路罐車容積進行不確定度評定,建立數學模型,確定靈敏繫數,從內豎直徑測量、內橫直徑測量、內總長測量、封頭容積和筒體變形等方麵評定該方法的標準不確定度。幾何測量法檢定結果的擴展不確定度為3.2×10-3（k=2）,滿足液化氣體鐵路罐車容積檢定規程的計量性能要求。
대채용궤하측량법검정적액화기체철로관차용적진행불학정도평정,건립수학모형,학정령민계수,종내수직경측량、내횡직경측량、내총장측량、봉두용적화통체변형등방면평정해방법적표준불학정도。궤하측량법검정결과적확전불학정도위3.2×10-3（k=2）,만족액화기체철로관차용적검정규정적계량성능요구。
To evaluate the uncertainty in volume measurement of rail tankers for liquefied gases using geometric method,the mathematical model is constructed and the sensitivity coefficients are defined.The standard uncertainty is evaluated according to such factors as measuring inside vertical diameters,measuring inside cross diameters,measuring total inside length,volume of head and deformation of the tank.The expanded uncertainty in measurement by geometric method is 3.2×10-3（k=2）,which meets the metrological requirements in the verification regulation of volume of rail tankers for liquefied gases.
