A high-resolution, linear resistance-to-frequency converter

被引：63

作者：

Mochizuki, K ^{[1
]}

Watanabe, K ^{[1
]}

机构：

[1] SHIZUOKA UNIV,ELECTR RES INST,HAMAMATSU,SHIZUOKA 432,JAPAN

来源：

IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT | 1996年 / 45卷 / 03期

关键词：

D O I：

10.1109/19.494596

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：

A resistance-to-frequency converter consisting of a Wheatstone bridge followed by an integrator and a comparator is described. In concept the circuit represents a relaxation oscillator whose frequency changes linearly with a resistance change detected by the bridge. Analyses show that a resolution better than 0.05% is possible with the simple configuration, and an excellent linearity is maintained over the wide resistance change by using a simple compensation method. The converter is therefore suited as a signal conditioner of a resistive sensor. Experimental results are included to demonstrate its performance.

引用

页码：761 / 764

页数：4

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