繼電器在工業控制中用途越來越廣泛，各繼電器生產廠商不斷尋求先進的檢測方法和設備，基于此作者開發了將微機控制技術應用在電壽命試驗的自動化水平高、可靠性高、功能強大的檢測系統。文章主要介紹了該系統的硬件結構、A/D 采樣監測方法中先進的采集方式，以及系統的應用軟件。該系統在試驗室運行良好，并最終應用到了許多繼電器生產廠家，為繼電器電壽命試驗以及試驗之后的數據分析提供了可靠的保證。
關鍵字：微機控制; 繼電器; 電壽命; 采樣方式; Visual C/C++6.0
Abstracts：The application of Electromagnetic-Relay in Control becomes wider and wider, all factories are incessantly searching the advanced methods of testing and devices. A system of Relay Electric Endurance Test which using the Computer-Controlling technology is developed , with the high level of Automation and Reliability, more functions . The text mainly introduces the hardware-structure、advanced mode of A/D sampling and applications of the system. The system has run well at lab and been applied to many factories, providing the reliable guarantee for Relay Electric Endurance Test and Analysis of the Data.
Keywords：Computer controlling; Relay; electric endurance test; A/D sampling; VC/C++ 6.0