Image Processing Technique for Zinc Ion Sensing Using a Crystalline Fiber Sensor

Omar Hassan,Razi Al-Azawi,Bushra Mahdi

doi:10.30684/etj.v39i10.2136

Abstract

In this paper, crystalline optical fibers were used as a sensor for sensing the zinc ion concentration using the image processing technique. The image of the laser spot transmitted through the optical fiber crystal sensor for each concentration of zinc ion solution. The sensor was made by welding a piece of LMA-10 crystal optical fiber from both ends of a single-mode optical fiber to obtain an SM-PCF-SM type sensor. And it is possible to distinguish between one concentration and another by studying the change of the images obtained as a result of changing the concentration of the zinc ion. The sensitivity of the manufactured sensor was about 73.47%.

Highlights

Microstructural fibers or optical fibers (PCFs), which are known as Holey fibers, have an array arrangement of microholes running in parallel along the entire length of the fiber
The process of light transmission in the first type is based on the effect of the photon band gap (PBG) is the light-guiding mechanism of the second type, through which light is transmitted by the phenomenon of modulated total internal reflection (MTIR) to direct light [1]
The laser distribution inside PCF LMA-10 surrounded with air and other concentration only can be seen with the CDD camera of smart phone

Summary

Introduction

Microstructural fibers or optical fibers (PCFs), which are known as Holey fibers, have an array arrangement of microholes running in parallel along the entire length of the fiber. There are two types of photonic fibers, the first type is hollow core with an air clad around it in silica glass and the other is a solid core surrounded by an air clad in silica. The process of light transmission in the first type is based on the effect of the photon band gap (PBG) is the light-guiding mechanism of the second type, through which light is transmitted by the phenomenon of modulated total internal reflection (MTIR) to direct light [1]. Optical fiber sensor is one of the most interesting and advanced fields. Novelty in this paper is the use of image processing to analyze the results of laser spots resulting from environmental pollution with zinc ion using a PCF photonic fiber sensor using Mach Zehnder technique

Image processing

Practical Side

Results

Conclusions