光纤互连设备和无源元件.基本试验和测量程序.第3-28部分:检验和测量.瞬时损耗

[中文适用范围]： IEC 61300 的这一部分描述了测量由于光纤和无源光学元件在其使用寿命期间施加的机械应力而导致的衰减快速变化的方法。瞬态损耗测量显示快速机械扰动对光纤的影响。这些干扰可能是由于被测设备 (DUT)@ 上的多种类型的动作造成的，例如：跌落@振动@碰撞或操纵光纤。因此，这种测量通常在进行机械测试的设备上进行。该方法并非旨在测量可能影响传输系统性能的非常快的瞬态损耗（持续时间小于 1 毫秒）。它经过优化，可以检测由于组件性能标准@中规定的测试而导致的机械应力引起的瞬态损耗，其持续时间通常长于几十毫秒。 [外文原描述]： IEC 61300-3-28:2012 describes methods to measure fast variation of attenuation due to mechanical stresses applied on optical fibres and passive optical components during their lifetime. This method is not designed to measure very fast transient losses (with duration less than 1 ms) that could affect the performance of transmission systems. It is optimised to detect transient losses caused by mechanical stresses due to the tests prescribed in the component performance standards, whose duration is generally longer than several tens of milliseconds. Changes from the previous edition of the document are to update the test method and to reconsider the requirements. Keywords: Transient loss