金属家具中木质件含水率测量结果不确定度评定  

Evaluation of Uncertainty in Measurement Results of Moisture Content of Wood Parts in Metal Furniture

作　　者：张轩 张文强 戴蕊 Zhang Xuan;Zhang Wenqiang;Dai Rui(Forest Products Quality Inspection and Testing Center of State Forestry and Grassland Bureau,Xuzhou,Jiangsu 221300,China;National Center for Quality and Performance Inspection of Wood and Wood Products,Beijing 101102,China;Pizhou Jinbao Construction Engineering Co.,Ltd,Xuzhou,Jiangsu 221300,China)

机构地区：[1]国家林业草原局林产品质量检验检测中心,江苏徐州221300 [2]国家木材与木制品性能质量检验检测中心,北京101102 [3]邳州金宝建筑工程有限公司,江苏徐州221300

出　　处：《绿色科技》2022年第16期278-280,共3页Journal of Green Science and Technology

摘　　要：根据《检测和校准实验室能力认可准则》(CNAS-CL01:2018)、《测量不确定度的要求》(CNAS-CL01-G003:2021)的要求,针对金属家具中木质件含水率测量过程中测量不确定度分量的特点,客观分析了整个过程显著影响试验结果的测量因素,系统地对金属家具中木质件含水率测量结果不确定度进行了评定,从而使测量结果更可信。实验表明:试验条件下的金属家具中木质件含水率测量结果的相对扩展不确定度为U_(r)=1.2%(k=2)。According to the requirements of Criteria for Accreditation of Testing and Calibration Laboratory Competence CNAS-CL01:2018 and Requirements for Measurement Uncertainty CNAS-CL01-G003:2021,aiming at the characteristics of measurement uncertainty components in the process of moisture content measurement of wood parts in metal furniture,the whole process of significant impact on the test results of measurement factors is objectively analyzed.The uncertainty of the measurement results of the moisture content of wood pieces in metal furniture is systematically evaluated so as to make the measurement results more reliable.The experimental results show that the relative expanded uncertainty of the measurement results of the moisture content of wood pieces in metal furniture under the test conditions is Ur =1.2%(k=2).

关 键 词：金属家具 木质件含水率 测量结果 不确定度 

分 类 号：TH83[机械工程—仪器科学与技术]