Development of absorption fiber optic sensor for distributed measurement of ammonia gas

J. Aubrecht; L. Kalvoda

doi:10.1117/12.2017281

3 May 2013 Development of absorption fiber optic sensor for distributed measurement of ammonia gas

J. Aubrecht, L. Kalvoda

Proceedings Volume 8774, Optical Sensors 2013; 877417 (2013) https://doi.org/10.1117/12.2017281
Event: SPIE Optics + Optoelectronics, 2013, Prague, Czech Republic

Abstract

Polymer-clad silica optical fibers are employed for development of different absorption optic fiber sensors of gaseous analytes. In our case, the physical principles of the detection are combined with a chemical reaction between analyte and suitable opto-chemical absorption reagents. Selected organometallic complex reagents with different lengths of lateral aliphatic chains are studied with respect to the type of central ions and their coordinative conditions to surrounding ligands. The effect of solvent type on solubility and the long-term stability of the prepared reagents in solid matrix are presented and discussed. Various methods are also tested in order to achieve an effective reagent immobilization into the polymer matrix, which creates optical fiber cladding. The chemical reaction of the reagents with ammonia based on ligand exchange process is accompanied by changes of visible-near-infrared optical absorption influencing via evanescent field on the guided light intensity. Experimental results suggest that the selected reagents provide optical properties suitable for practical sensing applications and that the sensitized PCS optical fibers could be used for detection of ammonia gas.

Citation Download Citation

J. Aubrecht and L. Kalvoda "Development of absorption fiber optic sensor for distributed measurement of ammonia gas", Proc. SPIE 8774, Optical Sensors 2013, 877417 (3 May 2013); https://doi.org/10.1117/12.2017281

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