Cookies on this website

We use cookies to ensure that we give you the best experience on our website. If you click 'Accept all cookies' we'll assume that you are happy to receive all cookies and you won't see this message again. If you click 'Reject all non-essential cookies' only necessary cookies providing core functionality such as security, network management, and accessibility will be enabled. Click 'Find out more' for information on how to change your cookie settings.

The development of a fibre optic oxygen sensor system based on an unsymmetrical fibre coupler for the measurement of oxygen partial pressure (PO2) is reported. The principle of the oxygen sensor is based on the luminescence quenching of a luminophore by oxygen and the sensor consists of an unsymmetrical silica fibre coupler and a PMMA sensing medium that contains immobilized Pt (II) complexes. The 2×2 unsymmetrical optical fibres coupler was made using two silica fibres with different core diameters, one is with 200μm core diameter and another one is with 105μm core diameter. In our current work, the fibre coupler fibre was optimized to improve the performance of the sensor system by increasing light coupling efficiency from LED to sensor probe. The performance of the fibre optic oxygen sensors was evaluated using Ocean Optics spectrometer (USB2000) based on the luminescence intensity measurement. The details of the sensor chemistry, experimental system and the results were presented. As result, a special fibre coupler has been used to construct a practical, low cost oxygen sensor. © 2009 SPIE.

Original publication

DOI

10.1117/12.838758

Type

Journal article

Journal

Proceedings of SPIE - The International Society for Optical Engineering

Publication Date

01/12/2009

Volume

7508