航天继电器可靠性寿命试验分析系统的研究  

Study of Reliability Life Test System for Aerospace Relay

作　　者：任立[1] 余琼[1] 翟国富[1] 

机构地区：[1]哈尔滨工业大学军用电器研究所,黑龙江哈尔滨150001

出　　处：《机电元件》2009年第2期3-7,共5页Electromechanical Components

摘　　要：在现行继电器寿命试验中,仅依靠接触电阻的超标是不能全面反映继电器的失效问题。就此,本文设计了一种多参数实时采集的航天继电器可靠性寿命试验分析系统。该系统由工控机、主控制单元、数据采集及处理单元和线圈驱动单元组成,适用于不同负载、不同测试数量的航天继电器的可靠性寿命试验。它能实时采集继电器在可靠性寿命试验中的接触电阻、吸合时间、超程时间等特性参数,并对这些参数进行分析、计算和处理,来全面地、综合地判断继电器是否失效。此外,还可对继电器进行失效分析,得出失效模型,为进一步研究继电器失效机理提供了依据。The contact resistance＇ s over - normal situation in the conventional relay life test can＇ t roundly proof the failure of the relay. This paper designs a reliability life test system for aerospace relay based on the multi - parameter test. This system includes four parts ： the computer, the main control module, the data collect module and the coil driver module. This system applies to different kinds of the reliability life test with different loads. This system can acquire the real - time parameters like contact resistance, the close time and the over - travel time. Based on the analysis of the parameters, the system can synthetically judge the failure of the relay. Furthermore, this system can work out the failure analysis of the relay, gain the failure model for the further research on the failure mechanism.

关 键 词：航天继电器 可靠性寿命试验 多参数检测 

分 类 号：TM58[电气工程—电器]