羽绒中水分测定结果不确定度的评定

Valuation on uncertainty of measurement in the determination of moisture content testing in down

依据EN 1661—2001《羽毛羽绒检验方法水分含量测定》对羽绒中水分含量的测量不确定度进行了分析和评定,建立了烘干法测定羽绒水分的数学模型,并量化不确定度分量,求出合成不确定度和扩展不确定度。结果表明,烘干法测定羽绒中水分含量,其不确定度主要来源于重复测定,其次是仪器的准确性引入的测量不确定度。

By the method of EN1661—2001 determination of moisture contents in down and feather,the uncertainty for the determination results of moisture contents in down and feather by drying has been given.The mathematic model has been established about down moisture testing by drying,and the uncertainty ponderance has been measured.At the same time,the synthetical uncertainty and the patulous uncertainty have been educed.The analysis results showed that the uncertainty of caused by that the changes in repetitive testing,and that the veracity of apparatus.