Optical fibres - Measurement methods and test procedures. Numerical aperture measurement algolia-search-ignore 4 Optimizing the ion current

4 Optimizing the ion current

code 1810 is useful for:

BS EN 13411-1 specifies the minimum requirements for non welded general purpose steel thimbles produced from plates having dimensions by Figure 1

BS EN 61298-4 specifies the content of the written report on the evaluation or tests on a process measurement or control device

The electrical characteristics of the supply

Optical fibres - Measurement methods and test procedures. Numerical aperture measurement algolia-search-ignore 4 Optimizing the ion current1 Scope This part of IEC 60793 establishes uniform requirements for measuring the numerical aperture of optical fibre, thereby assisting in the inspection of fibres and cables for commercial purposes. The numerical aperture (NA) of categories A1, A2, A3 and A4 multimode fibre is an important parameter that describes a fibre's light gathering ability. It is used to predict launching efficiency, joint loss at splices, and micro macrobending performance.