| 测试性设计的主要目的和具体的实施方法 |
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| 引用本文： | 丁定浩.测试性设计的主要目的和具体的实施方法[J].电子产品可靠性与环境试验,2014(3):1-5. |
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| 作者姓名： | 丁定浩 |
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| 作者单位： | 中国电子科技集团公司电子科学研究院,北京100041 |
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| 摘 要： | 测试性设计的主要目的,就是要求反映被测对象的工作状态和隔离故障到现场更换模块。这两项任务,要求由机内检测设备(BITE)来实现。测试性设计不能局限于满足BITE的故障检测率和故障隔离率,它更关注故障隔离的平均时间。对预测和设计故障隔离时间和虚警率提出了一种实用方法,对落实测试性设计具有重要的意义。
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| 关 键 词： | 故障检测率 故障隔离率 虚警率 失效模式与效应分析 |
The Main Purposes and Implementation of Design for Testability |
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| DING Ding-hao.The Main Purposes and Implementation of Design for Testability[J].Electronic Product Reliability and Environmental Testing,2014(3):1-5. |
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| Authors: | DING Ding-hao |
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| Affiliation: | DING Ding-hao (China Academy of Electronics and Information Technology of CETC, Beijing 100041, China) |
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| Abstract: | The main purposes of design for testability are to show the operational status of the unit under test and to isolate the failures to LRU. These two tasks are implemented with BITE. But design for testability cannot be limited to meeting the required fault detection rate and fault isolation rate of BITE. We are more concerned about the mean time of fault isolation. A practical approach is presented to predict and design the fault isolation time and false alarm rate,which is helpful to implement the design for testability. |
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| Keywords: | fault detection rate fault isolation rate false alarm rate FMEA |
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