本文将模糊数据融合技术引入电子电路故障诊断之中 .通过测试电子电路中的被诊断元件的工作温度和工作电压两个物理量 ,得出两传感器对各待诊断元件的故障隶属度 ,在对隶属度值进行数据融合的基础上 ,确定故障元件 ,并通过单传感器诊断结果与融合诊断结果比较 ,说明多传感器融合的优越性 In this paper, the fuzzy data fusion technology is introduced into the electronic circuit fault diagnosis.By measuring the working temperature and operating voltage of the diagnosed components in the electronic circuit, the fault membership degree of the two sensors to be diagnosed is obtained, Based on the data fusion, to determine the fault components, and through a single sensor diagnostic results and fusion diagnostic results, indicating the superiority of multi-sensor fusion