金银丝嵌织方法与屏蔽效率的研究

Study on the wedge method and shielding efficiency of bullion thread

将金银丝线与毛纱并捻作为纬纱,以不同密度织入,开发了电磁防护毛纺织物。利用网络分析仪—波导管测试系统对其进行电磁屏蔽性能测试,结果表明,屏蔽效率与金银丝嵌织密度的变化规律符合指数关系;与测试角度的余弦值的变化规律成抛物线关系。

In this paper, the woolen cloth with electromagnetic defence was developed,of which the woolen yarn twisting together with bullion thread as the wefts was wedged into the fabric in different densities. Using the network analyzer instrument-wave guide testing system, we carry through electromagnetic shielding performance test to it,The result indicates that the shielding efficiency vary with wedge density of the bullion thread according to negative exponent, and vary with the cosine of testing angle according to parabola.