实验室检测评定方法的测量不确定度

检测评定方法是实验室中最为常用的基础试验手段,其评价判定结果的准确性对研究材料特性及评价制品的合格与否都有直接参考价值。使用名义等级(nominal level)、次序等级(ordinal level)、度量等级(metric level)这3种不同评价等级方式,再通过对物理检测、化学检测、无损检测(NDE) 3种试验过程不确定度的分析和评价,最终获得了不同检测评价方法所合成不确定度评定的不同结果。测量结果的准确性往往会对企业的经济利益造成直接影响,甚至会影响到员工人身安全和健康,因此,该研究对国内外实验室检测评价方法的不确定度评定有着很重要的意义。

Measurement uncertainty of laboratory testing evaluation method

Testing evaluation method is the most commonly used basic test method in the laboratory. The accuracy of the evaluation results has a great reference value to study material characteristics and evaluate the product conformity. It can be implemented in three different approaches, including nominal level, ordinal level and metric level. Then through further analysis and evaluation in the uncertainty of physical detection, chemical detection and nondestructive examination (NDE), the different results of combined uncertainty evaluation in different testing methods can be obtained. The accuracy of measurement results often has a direct influence on the economic interests of enterprises, and even affects the safety and health of staffs. Therefore, the study has a great significance for the uncertainty assessment of laboratory testing evaluation method at domestic and overseas.