电磁继电器静态吸反力特性的测试与分析

介绍了一种电磁继电器静态吸反力特性测试分析系统。该系统采用悬臂梁式应变片力传感器测量电磁继电器吸力特性、反力特性及其舍力特性，采用直线光栅位移传感器测量衔铁（或触点）位移，以单片机为中央处理机进行测试过程的控制与数据采集，通过系统机进行数据分析与管理监控。实际测试证明，该系统适用于民用和军用电磁继电器，为改进电磁继电器吸反力配合性能、提高产品可靠性提供了试验手段。

Testing and Analyzing of Attraction Force and Mechanical Force for Electromagnetic Relay

Testing system for static attraction force and mechanical force characteristic of electromagnetic relay is introduced in this paper. This system is composed of the cantilever force sensor by which we measure the attraction force and mechanical force, the beeline grating displacement sensor by which we measure the displacement of armature or contact, a microcontroller by which we control the testing process and sample the signal from sensor, and a personal computer by which we analyze and manage the sampled data and monitor the testing process. The results show that this system can be applied in both civil and military electromagnetic relays, and provide a testing method for the enhancement of cooperation of the attraction force and mechanical force in order to improve the reliability of relay products.