Title :
Identification of ion species in electrolytic solutions using surface acoustic wave liquid flow sensing system based on new pattern recognition method
Author :
Kondoh, Jun ; Yamazaki, Tsutomu ; Matsui, Yusuke ; Shiokawa, Shigeki
Author_Institution :
Fac. of Eng., Shizuoka Univ., Japan
Abstract :
The surface acoustic wave (SAW) on 36YX LiTaO3, the shear-horizontal mode (SH-SAW), can detect liquid properties. This paper describes the new method to identify and estimate components and concentration of ions in aqueous solutions by using a liquid-flow sensing system with the SH-SAW sensor without any selective organic films. The principle of the identification is based on the difference in transient responses. The proposed method includes a new technique for constituting the database of mixing ion solution from that of the single ion solutions.
Keywords :
chemical sensors; chemical variables measurement; liquid mixtures; lithium compounds; pattern recognition; surface acoustic wave sensors; transient response; LiTaO3; SAW liquid flow sensing system; aqueous solutions; binary mixtures; electrolytic solutions; ion species identification; mixing ratio; molar concentration; pattern recognition method; shear-horizontal mode; transient response; Acoustic sensors; Acoustic signal detection; Acoustic waves; Electromechanical sensors; Fluid flow; Permittivity measurement; Sensor systems; Surface acoustic wave devices; Surface acoustic waves; Valves;
Conference_Titel :
Ultrasonics Symposium, 1999. Proceedings. 1999 IEEE
Conference_Location :
Caesars Tahoe, NV
Print_ISBN :
0-7803-5722-1
DOI :
10.1109/ULTSYM.1999.849442
