Method of measurement of the microwire core diameter and glass coating thickness

Abstract

The method consists in using of two collimating sets of visible light and two collimating sets with ultraviolet light, which include: light-emitting lens, collimating lens, optical shutters of rectangular or oval shapes, focusing lens for the light photo-detectors. The emitted light flows are dissipated by microwire and generates photocurrents of different values, depending on the microwire coat thickness and core diameter. The photocurrents are amplified and filtered by differential amplification blocks, create electrical signals with different voltage values, are converted into digital values used by the calculation unit for calculation of the core diameter and the microwire coat thickness. Applications: Applied electronics, automation.