自适应智能电磁防护材料测试方法研究

摘要

目的 在强电磁场环境下研究自适应智能电磁防护材料的相变特性.方法 针对自适应智能电磁防护材料相变前后电导率的变化范围大、需要强场激励状况,考虑测试系统强场生成、大动态范围、测试精度以及相应的绝缘性和较高的安全性要求,采用电容充放电原理设计强场激励测试电路,搭建绝缘环境,确保操作的安全性和测试数据的可靠性.结果 利用测试系统对现有商业化电阻器进行验证试验,得到的特性曲线与理论相一致.结论 测试系统能够满足自适应智能电磁防护材料相变特性试验的需求,可获取有效且可靠的测试数据.%Objective To study on the phase transition phenomenon of adaptive intelligent electromagnetic shielding material in electromagnetic field environment.Methods Based on large range of conductivity change, requirement of strong electromag-netic field motivation of adaptive intelligent electromagnetic shielding material and considering strong electromagnetic field generation of testing system, large dynamic range, precision, corresponding insulation and high safety requirement, the capaci-tance charge-discharge principle was adopted to design a test circuit for strong electromagnetic field motivation and create a in-sulation environment to guarantee safety of operation and reliability test data.Results The characteristic curve obtained in the verification test on commercial resistor with the testing system was in line with the theory.Conclusion The testing system meets the demands of phase transition property test on adaptive intelligent electromagnetic shielding material and can obtain effective and reliable test data..