Developments Worldwide - By Editor (21 Nov 18)
In all three processes, IVD (Internal Vapour Deposition), OVD (Outside Vapour Deposition), and VAD (Vapour Axial deposition), it is essential to maintain dimensional specifications during the layering process (it is critical for each layer to be of specific thickness and composition). Exact ratios must be maintained so that the final drawn fibre will have the required performance characteristics.
The two primary functions that the diameter gauge provides are diameter and position. Diameter is critical to determine deposition layer thickness, while Read Article