A simple interface circuit for micromachined gas sensors

被引：16

作者：

Baroncini, M

Placidi, P

Cardinali, GC

Scorzoni, A

机构：

[1] Fac Engn, DIEI, Dipartimento Ingn Elettr & Informat, I-06125 Perugia, Italy

[2] CNR, IMM, LAMEL, I-40129 Bologna, Italy

来源：

SENSORS AND ACTUATORS A-PHYSICAL | 2003年 / 109卷 / 1-2期

关键词：

microcontroller; interface circuit; measurement; control; gas microsensor;

D O I：

10.1016/S0924-4247(03)00348-0

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 a microcontroller-based interface circuit for chemoresistive metal-oxide gas sensor dedicated to environmental pollution detection. The circuit controls the sensor operating temperature, measures the sensing layer resistance, offering also a user-friendly interface. The main system features are: wide dynamic measurement range, self-calibration capability, built-in RS-232 interface and two different methodologies of data acquisition, namely constant and pulsed temperature modes. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：131 / 136

页数：6

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