Temperature-compensation circuits for simple solution-concentration sensor with temperature compensation using bulk acoustic waves

被引：0

作者：

Ikeda, Kiyoshi ^{[1
]}

机构：

[1] Shinshu Univ, Fac Engn, Nagano 3808553, Japan

来源：

2005 IEEE INTERNATIONAL FREQUENCY CONTROL SYMPOSIUM AND EXHIBITION | 2005年

关键词：

D O I：

10.1109/FREQ.2005.1573907

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper describes the use of a temperature-compensation circuits for simple solution-concentration sensor with temperature compensation using bulk acoustic waves. We analyzed the design method of temperature-compensation circuit (TCC) in order to eliminate considerable effect temperature has on sound velocity in liquids. The design methods are derived on a temperature-compensation factor by using a Taylor series expansion of the equation for sound velocity, which is a function of concentration and temperature centered on a reference concentration and reference temperature. The phase-locked loop (PLLM) was applied to NaCl solutions of varying concentrations and shown to yield an accurate determination of concentration within +/- 0.024% independent of variations in temperature of +/- 1.3 degrees C at approximately 25.0 degrees C.

引用

页码：84 / 92

页数：9

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