自动测试设备的效率方程

效率是各项指标的综合度量。首先提出度量自动测试设备(ATE)效率的8项技术指标:故障检测率FDR、故障隔离率FIR、检测准确度FDA、测试时间t_d、故障检测概率P_d、故障漏报概率P_m、虚警概率P_f和故障分辨率δ。重点是建立ATE的效率方程,包括建立和求解ATE的工作状态方程,导出故障检测效率方程,无模糊故障隔离的效率方程和模糊故障隔离的效率方程,即ATE的效率方程,从而为ATE指标的分析与综合提供一种理论依据。

AN EFFECTIVENESS EQUATION OF ATE

Effectiveness is an integrated measurement of all parameters. This paper presents firstly eight technical parameters which measure the effectiveness of the automatic test equipment (ATE). They are fault detection rate (FDR), fault isolation rate (FIR), fault detection accuracy (FDA), test time (td), fault detection probability (Pd), fault missing probability(Pm), false alarm probability (Pf) and fault resoonluti (δ).Then the paper focuses its main discussion on establishing the effectiveness equation of ATE, during the process of which the authors begin with establishing and solving the operational state equation of ATE, and then deduce the fault detection effectiveness equation, fault isolation effectiveness equation without ambiguity and finally the fault isolation effectiveness equation with ambiguity, which is the ATE effectiveness equation providing a theoretical basis for analyzing and synthesizing the ATE parameters.