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

Volume

1

fYear

1999

fDate

17-20 Oct. 1999

Firstpage

471

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 1999. Proceedings. 1999 IEEE

Conference_Location

Caesars Tahoe, NV

ISSN

1051-0117

Print_ISBN

0-7803-5722-1

Type

conf

DOI

10.1109/ULTSYM.1999.849442

Filename

849442