拍合式电磁继电器动态特性测试技术研究

摘要

针对现有非接触式继电器动态特性测试采用的图像处理方法数据处理量大、算法复杂且硬件成本高等问题,提出利用光学三角原理对拍合式继电器衔铁运动过程角度位移进行非接触式实时测量的方法.通过光电位置敏感探测器和数据采集模块直接获取衔铁的运动角度数据,利用测得的数据进行计算从而获得继电器吸合过程的动态特性.以G2R-1小型继电器为实验测量对象,建立了继电器衔铁运动的磁路模型,获得了其角度位移的理论值,通过对比理论计算与实验测量的继电器衔铁角度位移数据,分析继电器衔铁吸合过程的运动规律,验证了所提测量方法的正确性和可行性.该方法避免了接触式测量手段对继电器衔铁运动带来的影响,且设计的测量装置具有结构简单、成本低、数据处理量小、适用范围广等优点.%Image processing method of the non-contact measurement of the dynamic characteristics of relay has large amount of data processing,algorithm complexity and hardware cost is high.A method that measured the angle of relay armature in non-contact and real-time using the optical triangulation was proposed.This method is to obtain Angle data of armature by using the position sensitive detectors and the data acquisition module.Using the measured data was calculated in order to get the dynamic characteristic of suction and release process of relay.The armature and absorption process of relay movement rules were analyzed.With G2R-1 small relay as the experimental object,the relay armature motor magnetic circuit model was established,the angle displacement of the theoretical value was obtained.By comparing the theoretical calculation and experimental measurement of the relay armature angle displacement data,analysis of the movement rule of relay armature attracted process,shows that this measurement method is correct and feasible.The impact of the relay armature movement was avoided by using Contact test method.Experiments show that the measurement real-time data of the angle of the armature movement have a good agreement with the theoretical value.The measuring device has a simple structure,low cost,accurate measurement,data processing a small amount,for a wide range advantages.