Intelligent control system and method for manufacturing optical fiber prefabricated rod by using OVD (optical variable device)

Abstract

The invention discloses an intelligent control system and a method for manufacturing an optical fiber prefabricated rod by using an OVD (optical variable device) and relates to the field of optical fiber manufacturing. The intelligent control system comprises a support device, at least one blowtorch, a diameter measuring device and a control device, wherein the support device is used for clampinga core rod to be processed; a weighing sensor is arranged on the support device; the weighing sensor is used for measuring the weight of a loosened body on the core rod in real time; the at least oneblowtorch is arranged on the support device; the diameter measuring device is used for measuring the outer diameter of the loosened body in real time; and the control device is used for receiving weight data transmitted from the weighing sensor and outer diameter data transmitted from the diameter measuring device, and used for adjusting the flow of the blowtorch according to the weight data and the outer diameter data, and thus the outer diameter and the density of the loosened body are both within preset ranges. By adopting the intelligent control system, the outer diameter size, the weightand the density of the loosened body can be precisely controlled.

Description

technical field [0001] The invention relates to the field of optical fiber manufacturing, in particular to an intelligent control system and method for OVD manufacturing optical fiber preform rods. Background technique [0002] With the rapid development of the optical communication industry, the competition in the optical fiber market has intensified. For optical fiber preform manufacturers, it is the general trend to carry out intelligent production upgrades, improve the quality of optical fiber preforms, reduce costs and increase efficiency, and improve market competitiveness. [0003] In the field of communication optical fiber manufacturing, the mainstream technology is the "two-step" synthesis process of VAD (Axial Vapor Deposition, axial vapor deposition) combined with OVD (Outside Vapor Deposition, external vapor deposition). First, the VAD method is used to deposit the core rod, and then the OVD method is used to deposit the outer cladding, and the loose body is vit...

AI Technical Summary

Problems solved by technology

[0004] The existing OVD method for preparing optical fiber preforms is not highly intelligent, and it is necessary to always pay attention to changes in the deposition state, artificially adjust production parameters, low production efficiency, and poor stability

The outer diameter uniformity and density of the soot are the most important index parameters, which significantly affect the performance of the optical fiber. The current production process cannot control these index parameters in real time. Once the flame state and deposition state change, these parameters will fluctuate greatly , causing the product to be scrapped

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