一种接触器静态吸力连续测量的方法

交流接触器动态过程涉及电磁转换和机械运动的耦合,其电磁吸力的大小同时是励磁电流和动铁芯位移的函数。目前广泛采用的数值计算与模拟仿真方法存在一定的局限性,其计算仿真结果难以反映真实的运动过程。为了准确掌握交流接触器的动态响应过程,需要对不同电流、不同位移时的电磁吸力进行测量。开发一种基于拉力传感器静态电磁吸力测量的方法,可以对不同电流或者不同位移时的电磁吸力进行连续测量。采用该测量方法对CJ20-100型接触器进行了实验研究,将测量结果与模拟仿真结果相比较,验证了该测量方法的准确性。该测量方法为电磁机构动态特性测量方法的研究提供了重要的参考价值。

Continuous measuring method for static magnetic force of contactors

The dynamic process of AC contactor involves the coupling of electromagnetic conversion and mechanical movement, while the magnitude of the electromagnetic force is the function of both exciting current and the moving core displacement. However,there are some limitations in numerical calculation and simulation method. The results can not reflect the real process of the dynamics of the contactors. In order to understand the dynamic response of AC contactor precisely,it isimpossible to measure the electromagnetic force based on different currents and displacements. A method to achieve continuous measurement of the static magnetic force of contactors using force sensor is proposed, which can measure the electromagnetic force based on different currents and displacements. This method is used to measure the electromagnetic force of CJ20-100 contactor. The results are compared to simulation result, which shows that the methods is accurate. The measurement method provides characteristics of the electromagnetic contactors. an important reference value to study the dynamic