中文摘要：

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。

英文摘要：

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 interval which was about 1 mm wide. It could be used on the proportional valve with displacement enlarging instead of proportional solenoid. 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.