MEASUREMENTS OF CONDUCTIVITY AND PH OF LIQUID USING SURFACE ACOUSTIC-WAVE DEVICES

被引：18

作者：

KONDOH, J

SHIOKAWA, S

机构：

[1] Department of Opto-Electronic and Mechanical Engineering, Shizuoka University

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1992年 / 31卷

关键词：

LIQUID SENSOR; SH-SAW DEVICE; ACOUSTOELECTRIC INTERACTION; CONDUCTIVITY; PH; ENZYME-SUBSTRATE REACTION; BIOSENSOR;

D O I：

10.7567/JJAPS.31S1.82

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The use of a shear horizontal surface acoustic wave device in measurements of conductivity and pH of liquid is described. The device has two parallel SAW delay lines fabricated on 36-degrees rot Y cut X-prop. LiTaO3. The propagation surface of the one delay line is metallized but that of the other has no metallized area for an acoustoelectrical interaction with a liquid. The conductivity and pH of a liquid are measured by the differential signals of the both delay lines. Some acid and alkali solutions are examined. The SAW sensor is applied to the study of an enzyme-substrate reaction that shows the change in pH.

引用

页码：82 / 84

页数：3

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[7]

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