基于振动传感器性能退化数据的可靠性评估  

Reliability assessment based on performance degradation data for vibration sensors

作　　者：秦丽[1] 孟召丽[1] 吴永亮[1] 

机构地区：[1]电子测试技术国家重点实验室,山西太原030051

出　　处：《传感器与微系统》2009年第9期53-55,共3页Transducer and Microsystem Technologies

基　　金：国家"863"计划资助项目(2006AA040106)

摘　　要：在基于失效数据可靠性评估和性能可靠性评估方法的基础上,提出了基于性能退化量分布的可靠性评估方法,以对具有退化失效机理的振动传感器进行可靠性评估。基于性能退化量分布的可靠性评估方法,首先,计算不同测量时刻产品性能退化量的统计特征,对其进行曲线拟合得到统计特征随时间变化的函数,即性能退化量分布参数,然后,利用可靠性与性能退化量分布的关系评估产品的可靠性,最后,运用基于性能退化量分布的可靠性评估方法对振动传感器进行了可靠性评估。A method is proposed based on the rediability assessment and performance assessment to give reliability assessment for vibration sensors with degradation failure mechanism. The assessment method first computes the statistical ebaracteristics of the amount of degradation at different measurement and fit the statistical characteristics to functions of time. Then the reliability of products with the relationship between reliability and the distribution of degradation amount can be assessed. Lastly the reliability assessment for vibration sensors with the reliability assessment method based on performance degradation distribution is given.

关 键 词：退化数据 失效数据 振动传感器 可靠性评估 

分 类 号：TP202[自动化与计算机技术—检测技术与自动化装置] TP212[自动化与计算机技术—控制科学与工程]