Author(s): REN Li, Yu Qiong, ZHAI Guo-fu
Pages: 3-7
Year: 2009 Issue:  2
Journal: Electromechanical Components
Keyword:  aerospace relay; reliability life test; multi-parameter test;
Abstract: 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.