Optical sensor of components concentration in solution

Abstract

Purpose

This paper aims to focus on the development of an optical concentration sensor designed for measuring the concentration of components in solutions.

Design/methodology/approach

The operating principle of the developed sensor is based on the Bouguer–Lambert–Beer law. An optical measuring system using fiber optical cables was used for the practical implementation of the concentration sensor.

Findings

As a result of fiber optical cable use in the concentration sensor, the remote measurement principle was implemented, ensuring the instrument’s reliability and the reduction of operating costs.

Originality/value

The advantage of the proposed measuring system is that the sensitive element is maintenance-free, does not require power supply and can operate under severe industrial conditions. Using a fiber optic cable to transmit a light signal allows placing the sensitive element at a distance of several tens of meters from the electronics unit (the smart part).

Citation

Nadezhdin, I.S., Goryunov, A.G. and Nadezhdina, Y.Y. (2019), "Optical sensor of components concentration in solution", Sensor Review, Vol. 39 No. 5, pp. 704-707. https://doi.org/10.1108/SR-10-2018-0259