开关电磁铁比例应用的实验研究

摘要

在阐述开关电磁铁结构原理并分析其特性的基础上，对其比例特性进行了实验研究。通过概率分析实验结果可知：开关电磁铁可提取1 mm左右的稳定比例控制区间，可用在具有位移放大功能的比例控制阀上，取代比例电磁铁；其实测所得的电流-力特性表明：在输出位移为1．5、2．5 mm时，线性度较好，电磁力较相近。%On the basis of principle instructing and characteristic analysis of switching solenoid, its proportional characteristic was studied by an experiment. Probability analysis of experimental results was shown:switching solenoids had stable proportional control in-terval which was about 1 mm wide. It could be used on the proportional valve with displacement enlarging instead of proportional sole-noid. Experimental results of current-force characteristic show that its linearity is good and the output electromagnetic force is similar, when the output displacement was 1. 5 mm and 2. 5 mm.