天气预报 > 其他 > 宽带的光纤线会压坏吗
宽带的光纤线会压坏吗
更新时间: 2020-06-29 00:00:00  

光纤线外部有塑料护套,受压时能够弯曲而不损坏。光纤是光导纤维的简写,是一种由玻璃或塑料制成的纤维。光导纤维是由两层折射率不同的玻璃组成,内层为光内芯,直径在几微米至几十微米,外层的直径0.1毫米到0.2毫米。根据光的折射和全反射原理,光线射到内芯和外层界面的角度大于产生全反射的临界角时,光线透不过界面全部反射。多数光纤在使用前必须由几层保护结构包覆,包覆后的缆线即被称为光缆,光纤外层的保护层和绝缘层可防止周围环境对光纤的伤害。

关键词: 宽带 光纤

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