Title :
Detection of GB and DMMP vapors by Love wave acoustic sensors using strong acidic fluoride polymers
Author :
Zimmermann, Céline ; Mazein, Pierre ; Rebière, Dominique ; Déjous, Corinne ; Pistré, Jacques ; Planade, Roger
Author_Institution :
Ecole Nat. Superieure d´´Electronique d´´Informatique et de Radiocommun. de Bordeaux, Univ. Bordeaux, Talence, France
Abstract :
In this paper, we present a comparative study of GB and DMMP vapor detection using Love wave devices. Acoustic sensors are optimized versus the mass loading effect according to theoretical results, and a specific sensitive coating based on polysiloxane polymer is used to ensure selectivity. Experimental results allow us to compare the interactions between the coating and both gases. An estimation of the diffusion coefficient of each gas (GB and DMMP) was performed and we linked the dynamic of the responses with the sorption kinetics.
Keywords :
Love waves; gas sensors; organometallic compounds; polymer films; surface acoustic wave sensors; DMMP vapor detection; GB vapor detection; diffusion coefficient; gas detection; love wave acoustic sensors; love wave devices; mass loading effect; organophosphorus compounds; polysiloxane polymer; sensitive coating; sorption kinetics; strong acidic fluoride polymers; Acoustic devices; Acoustic propagation; Acoustic sensors; Acoustic signal detection; Acoustic waves; Chemical compounds; Chemical sensors; Coatings; Gases; Polymer films; Acoustic sensors; Love wave; gas detection; organophosphorus compounds;
Journal_Title :
Sensors Journal, IEEE
DOI :
10.1109/JSEN.2004.828387
