标准摘要
[中文适用范围]: IEC 60793的这一部分制定了监测光透射率变化的统一要求,从而有助于商业用途的光纤和电缆的检查。该标准提供了两种监测机械或环境测试或两者期间发生的光纤和光缆光透射率变化的方法。它提供了对由于光学不连续性、物理缺陷和衰减斜率修改而引起的光传输特性变化的监控: - 方法 A:传输功率引起的传输率变化; - 方法 B:通过反向散射改变透射率。方法 A 和 B 适用于监测以下所有类别的光纤: - A 类:多模光纤; - B 类:单模光纤。两种测量的共同信息包含在第 1 至 8 条中,与每种单独方法相关的信息分别出现在附录 A 和 B 中。 [外文原描述]: Gives two methods for monitoring the changes in optical transmittance of optical fibres and cables that occur during mechanical and environmental testing. It provides a monitor in the change of optical transmission characteristics arising from optical discontinuity, physical defects and modifications of the attenuation slope. The methods are the change in transmittance by transmitted power, and by backscattering. They apply to both multimode and single-mode fibres.
英文名称Optical fibres - Part 1-46: Measurement methods and test procedures - Monitoring of changes in optical transmittance