Open AccessDevelopment and characterization sensitivity of optical fibre pH sensor for industrial application
Author(s) -
Zaman Hameed Kareem
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1484/1/012020
Subject(s) - optode , cladding (metalworking) , transmittance , optical fiber , materials science , sensitivity (control systems) , distilled water , measure (data warehouse) , process engineering , computer science , optoelectronics , optics , chemistry , composite material , electronic engineering , chromatography , engineering , telecommunications , data mining , physics , fluorescence
Optical fibre sensor (optrode) depending on a transmittance was presented as a valuable sensitive sensor for several applications. Thus, the development of a wide-area detection system for continuously monitoring structural changes, together with a capability for non-destructive evaluation and early warning, is an important task the sensitive fibre was preparing by removing the cladding from several places and modified by different chemical solutions. The transmittance spectrum used to measure the pH of distilled water that contains HCL and NaOH in a range between 2 to 12. The special design of this sensor made it a perfect for laboratory and industrial usage, only 25 cm of modified fibre was enough to measure the pH in real time with a sensitivity 0.015-0.2 1/pH. The results showed this sensor can work in different solutions and it gives accurate results at any conditions.