THEORY OF SELF-DIAGNOSTIC SENSOR ARRAY DEVICES USING GAS-SENSITIVE RESISTORS

被引：51

作者：

WILLIAMS, DE

PRATT, KFE

机构：

来源：

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS | 1995年 / 91卷 / 13期

关键词：

D O I：

10.1039/ft9959101961

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The principles of operation of self-diagnostic gas-sensitive resistors are described. Such sensors use arrays of electrodes, on a single device, to probe the concentration profiles of target gases. Theoretical treatments are presented to show the application of such devices in distinguishing gases with differing ratios of reaction to diffusion rates, compensating for relative humidity, and detecting poisoning of the gas-sensing material. The transient behaviour of the devices is also modelled, demonstrating their potential use for resolving mixtures of gases having differing kinetic timescales, by producing a 'gas chromatograph' type of result.

引用

页码：1961 / 1966

页数：6

共 13 条

[1] Churchill R. V., 1960, COMPLEX VARIABLES AP
[2] Gardner J. W., 1993, SYNTHETIC MET, V55-57, P365
[3] GARDNER JW, 1994, UNPUB IEEE T ELECTRO
[4] GARDNER JW, IN PRESS SENS ACTU B
[5] EFFECT OF ELECTRODE GEOMETRY ON SENSOR RESPONSE
JAIN, U
HARKER, AH
STONEHAM, AM
WILLIAMS, DE
[J]. SENSORS AND ACTUATORS B-CHEMICAL, 1990, 2 (02) : 111 - 114
[6] JONES CP, 1989, Patent No. 2218523
[7] TIN DIOXIDE GAS SENSORS .2. THE ROLE OF SURFACE ADDITIVES
MCALEER, JF
MOSELEY, PT
NORRIS, JOW
WILLIAMS, DE
TOFIELD, BC
[J]. JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS I, 1988, 84 : 441 - 457
[8] McGeehin P., 1994, Sensor Review, V14, P13, DOI 10.1108/EUM0000000004249
[9] MCGEEHIN P, 1994, ADV INSTRUM, V48, P783
[10] MOSELEY PT, 1991, TECHNIQUES MECHANISM

← 1 2 →