【作者】 刘步婷； 刘俊； 王鹏； 彭涛；

【Author】 Liu Buting;Liu Jun;Wang Peng;Peng Tao;Quality Inspection Center of WISCO;

【机构】 武钢有限质检中心；

【摘要】 本文通过脉冲加热熔融-红外吸收法对汽车板钢中氧含量的不确定度来源进行了分析并建立数学模型,分别对测量不确定度的来源,诸如测量值的重复性、标准物质校准仪器的变动性、标准物质标准值的不确定度、天平称量的不确定度、仪器变动性、显示分辨力等进行了评定,得出汽车板钢中氧含量的测量不确定度,为提高氧的测量可靠性提供了分析依据。更多还原

【Abstract】 In this paper,the source of uncertainty of oxygen content in automobile plate steel is analyzed by pulsed heating,melting and infrared absorption method,and a mathematical model is established to measure the source of uncertainty.For example,the repeatability of the measurement value,the variability of the standard material calibration instrument,the uncertainty of the standard value of the standard material,the uncertainty of the balance weight,the variability of the instrument,and the display resolution were assessed.The uncertainty of the measurement of oxygen content in automobile plate steel is obtained,which provides a basis for improving the reliability of oxygen measurement.更多还原