电磁灶热效率测量不确定度研究  

Research on uncertainty in measuring thermal efficiency of electromagnetic stoves

作　　者：杜毅林 李剑 黄湘云 DU Yilin;LI Jian;HUANG Xiangyun(Qingdao Haier Intelligent Household Appliances Co.,Ltd.,Qingdao 266000;National Engineering Research Center of Digital Home Networking,Qingdao 266101;Shanghai Haier Intelligent Technology Co.,Ltd.,Shanghai 100062;Haier Group,Qingdao 266000)

机构地区：[1]青岛海尔智慧生活电器有限公司,山东青岛266000 [2]数字家庭网络国家工程研究中心,山东青岛266101 [3]上海海尔智能科技有限公司,上海100062 [4]海尔集团公司,山东青岛266000

出　　处：《家电科技》2024年第3期44-50,共7页Journal of Appliance Science & Technology

摘　　要：为了提升测试精度,测试电磁灶热效率时需要评定不确定度。系统分析了电磁灶产品热效率测试的影响因素,主要影响因素为水质量的测量和水温的测量,分析了负载锅的主要指标和影响测试精度的原因,并提出了提升测试精度的措施。分别采用GUM法和MCM法评定电磁灶热效率的测量不确定度。GUM法评定结果为:电磁灶热效率测量结果为86.93%,95%包含概率下的对称包含区间为[86.65%,87.21%];自适应MCM法计算为:热效率测量结果为86.93%,95%包含概率下的对称包含区间为[86.65%,87.21%]。对两种方法得到的结果进行了比较验证,两种方法得到的结果基本一致。与GUM法相比,MCM法评定不确定度过程更加简单,大大降低了计算工作量。In order to improve testing accuracy,uncertainty needs to be evaluated when testing the thermal efficiency of electromagnetic stoves.The system analyzed the influencing factors of the thermal efficiency testing of electromagnetic stove products,mainly including the measurement of water quality and temperature.The main index of the load pot and the reasons that affect the testing accuracy were analyzed,and measures to improve the testing accuracy were proposed.Evaluate the measurement uncertainty of electromagnetic stove thermal efficiency using GUM method and MCM method respectively.The GUM method evaluation result is:the thermal efficiency measurement result of the electromagnetic stove is 86.93%,and the symmetric inclusion interval under a 95%inclusion probability is[86.65%,87.21%];The adaptive MCM method calculates that the thermal efficiency measurement result is 86.93%,and the symmetric inclusion interval at a 95%inclusion probability is[86.65%,87.21%].The results obtained by the two methods were compared and verified,and the results obtained by the two methods are basically consistent.Compared with the GUM method,the MCM method has a simpler process for evaluating uncertainty,greatly reducing the computational workload.

关 键 词：蒙特卡洛法 电磁灶 热效率 测量不确定度 

分 类 号：TM925[电气工程—电力电子与电力传动] TB9[一般工业技术—计量学]