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IEC 60793-1-20:2001 ed1.0

Заменен
Optical fibres - Part 1-20: Measurement methods and test procedures - Fibre geometry — 53 стр.
Gives four methods for measuring the geometry of uncoated optical fibres. Parameters include: cladding diameter, cladding non-circularity, core diameter, core non-circularity, core-cladding concentricity error, and theoretical numerical numerical aperture.
ICS
33.180.10 Fibres and cables / Волокна и кабели