Development of an LED-based fiber optic oxygen sensor using a sol-gel-derived coating

Brian D. MacCraith; Gerard O'Keeffe; Aisling K. McEvoy; Colette M. McDonagh

doi:10.1117/12.190961

21 October 1994 Development of an LED-based fiber optic oxygen sensor using a sol-gel-derived coating

Brian D. MacCraith, Gerard O'Keeffe, Aisling K. McEvoy, Colette M. McDonagh

Proceedings Volume 2293, Chemical, Biochemical, and Environmental Fiber Sensors VI; (1994) https://doi.org/10.1117/12.190961
Event: SPIE's 1994 International Symposium on Optics, Imaging, and Instrumentation, 1994, San Diego, CA, United States

Abstract

Two evanescent wave fiber optic sensors for oxygen are reported: (i) intensity-based, and (ii) based on phase fluorimetry. Both sensors employ the quenching by oxygen of the fluorescence form a ruthenium complex trapped in the cage-line structure of a sol-gel-derived porous film on a declad section of multimode optical fiber. The sensors exhibit excellent performance using excitation from new high brightness blue LEDs and establish the viability of low-cost portable sensor devices based on the sol-gel process. The data presented for the intensity-based sensor were obtained using an all solid state excitation and detection system. Preliminary results obtained by application of the intensity- based sensor to dissolved oxygen measurement are also reported.

Citation Download Citation

Brian D. MacCraith, Gerard O'Keeffe, Aisling K. McEvoy, and Colette M. McDonagh "Development of an LED-based fiber optic oxygen sensor using a sol-gel-derived coating", Proc. SPIE 2293, Chemical, Biochemical, and Environmental Fiber Sensors VI, (21 October 1994); https://doi.org/10.1117/12.190961

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available