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Research on Attenuation Law of Expandable Graphite to Millimeter Wave in the Three-Dimensional Space

机译：三维空间中膨胀石墨衰减定律研究

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In this paper, researchers test the attenuation law of millimeter wave to expandable graphite of different concentrations with 3mm (8mm) artificial fog insertion loss test system, through laboratory tests and smoke device field tests. The results of tests proved that the attenuation performance of expandable graphite to 3mm wave is better than to 8mm wave, which could reach 18dBm and 16dBm respectively when the density is 60g/m~3 and the optical path is 0.2m. Besides, the indoor attenuation performance of expandable graphite is better than outdoor performance, which means that meteorological conditions have great impact on the attenuation performance of expandable graphite in the field tests, and that the sedimentation of expandable graphite is quite speedy under wind-free circumstances. Therefore, it is suggested to extend the suspension time of expandable graphite as long as possible, so as to improve the anti-interference ability of expandable graphite smoke.
机译：在本文中，研究人员测试毫米波的衰减定律，通过实验室测试和烟雾装置现场测试来测试毫米波的扩张规律与3mm（8mm）人工雾插入损耗测试系统的不同浓度的膨胀石墨。试验结果证明，可膨胀石墨至3mm波的衰减性能优于8mm波，当密度为60g / m〜3时分别达到18dBm和16dBm，光路为0.2m。此外，可扩展石墨的室内衰减性能优于户外性能，这意味着气象条件对现场测试中可扩展石墨的衰减性能产生了很大的影响，并且可扩展石墨的沉降在无风的情况下非常快速。因此，建议尽可能长地延长可扩展石墨的悬浮时间，从而提高可扩展石墨烟雾的抗干扰能力。

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