【摘要】 针对工程中各种可测性设计方法与规定的诊断要求间缺乏定量关系,造成一定的设计的盲目性等问题,以产品的故障模式集及其相关特性为基础,界定了充分度的概念,构建了充分度的数学模型,并将其与目前工程中常用的故障检测率/故障隔离率要求建立了定量关系,提出了一套以充分度为基础的可测性设计理论,并且给出基于该理论的可测性设计流程。更多还原

【Abstract】 Considering the absence of quantitative relation between various design for testability(DFT) methods and certain diagnosis requirements,which results in the blindness in DFT field,based on the product’s fault mode aggregation and its relative characteristic,the sufficient measure concept is established,and its mathematics model is illustrated,and the quantitative relation between it and the general testability requirements(FDR/FIR) is set up.The theory on DFT based on the sufficient measure is offered and the design flow is brought forward.更多还原