刘浩,贺福强.基于正态分布下视觉检测元器件的寿命预测[J].电测与仪表,2021,58(5):164-167. liuhao,hefuqiang.Life prediction of visual inspection components based on normal distribution[J].Electrical Measurement & Instrumentation,2021,58(5):164-167.
基于正态分布下视觉检测元器件的寿命预测
Life prediction of visual inspection components based on normal distribution
For visual inspection system in the life of electronic components and test, it was found that the ascending temperature will directly affect the life size, working system cannot be effectively grasp components when the length of life, lead to system failure will seriously affect the normal work, thus put forward the change at a constant temperature stress disable components quickly method, got the time on the basis of the life test under the truncation, using the point estimation under the normal distribution under different stress level estimates of the mean and variance, which can predict components under the action of stress and the change rule of acceleration model fitting The hypothesis test method is adopted to verify the hypothesis and the experimental results of the acceleration model by comparing the test method and test data. The results show that the acceleration model has high accuracy and can effectively predict the stress water of electronic components at different temperatures.
