氢损

GB/T5158-1999金属粉末&在氢中还原时质量损失的测定（氢损）

Metallic powders & Determination of loss of mass on hydrogen reduction ( hydrogen loss )

根据新的IEC规范，介绍了相关光纤氢老化试验的程序和各种结构的光缆在不同应用环境下氢损效应评价必要性的导则。

The necessary guidance for the test procedure for hydrogen ageing of optical fibers and evaluation of hydrogen loss in individual cable constructions under different applications is described with reference to new IEC standards .

研究表明，加速测试氢损可通过增加H2的分压（浓度）和提高反应温度来实现。

Acceleration test for hydrogen sensitivity can be fulfilled by increasing the H2 partial pressure ( concentration ) and the reaction temperature .

此外，通过优化光纤纤芯各层的掺杂原子浓度，在1530nm处光纤的氢损降到了0.01dB/km。

Furthermore , the hydrogen induced attenuation at 1530 nm decreases to the value of less than 0.01 dB / km by optimizing the dopant concentration of different core layer .

光缆氢损的实例解析

A real example about analyzing the loss due to hydrogen diffusion

采用高压水雾化技术可用于生产高密度、高强度、尺寸稳定性的低氢损含量的水雾化预合金钢粉。

The conclusions are as follows : ( 1 ) High-pressure water-atomization can be used to produce a pre-alloyed steel powder with high apparent density , high green strength , size-stability after sintering and low hydrogen-loss content ;

结果表明，氘气处理后光纤在1383nm的氢损值小于0.01dB/km，并且这种抗氢损能力不随时间变化而变化，从而保证了光纤长期使用过程中的稳定性。

It is shown that the hydrogen-induced-loss at 1383 nm will be less than 0.01 dB / km after deuterium treatment . Such hydrogen resistance ability will not change with time so the long-term stability of fiber throughout the service lifetime can be guaranteed . The Qi ( vital energy )