IEC 60793-1-34-2006 光学纤维.第1-34:部分:测量方法和试验程序.纤维卷曲

标准号：IEC 60793-1-34-2006
中文标准名称：光学纤维.第1-34:部分:测量方法和试验程序.纤维卷曲
英文标准名称：Optical fibres - Part 1-34: Measurement methods and test procedures - Fibre curl
标准类型：M33
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：M33
国际标准分类号：33.180.10
适用范围：This part of IEC 60793 establishes uniform requirements for the mechanical characteristic:fibre curl or latent curvature, in uncoated optical fibres. Fibre curl has been identified as animportant parameter for minimizing the splice loss of optical fibres when using passivealignment fusion splicers or active alignment mass fusion splicers.Two methods are recognized for the measurement of fibre curl, in uncoated optical fibres:• method A: side view microscopy;• method B: laser beam scattering.Both methods measure the radius of curvature of an uncoated fibre by determining theamount of deflection that occurs as an unsupported fibre end is rotated about the fibre's axis.Method A uses visual or digital video methods to determine the deflection of the fibre whilemethod B uses a line sensor to measure the maximum deflection of one laser beam relative toa reference laser beam.By measuring the deflection behaviour of the fibre as it is rotated about its axis andunderstanding the geometry of the measuring device, the fibre's radius of curvature can becalculated from simple circular models, the derivation of which are given in Annex C.Both methods are applicable to types A1, A2, A3 and B optical fibres as described in theIEC 60793 series.Method A is the reference test method, used to resolve disputes.