An investigation of the performance characteristics and operational lifetimes of multi-element thick film sensor arrays used in the determination of water quality parameters

被引：37

作者：

Atkinson, JK ^{[1
]}

Cranny, AWJ ^{[1
]}

Glasspool, WV ^{[1
]}

Mihell, JA ^{[1
]}

机构：

[1] Univ Southampton, Dept Mech Engn, Thick Film Unit, Southampton SO17 1BJ, Hants, England

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 1999年 / 54卷 / 03期

基金：

英国工程与自然科学研究理事会;

关键词：

thick-film; sensor arrays; water quality; dissolved oxygen; pH;

D O I：

10.1016/S0925-4005(99)00023-4

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

An investigation of the useful lifetimes of thick film sensors suitable for the measurement of various aqueous parameters is reported. Batches of sensor arrays designed to simultaneously measure temperature, conductivity, pH, dissolved oxygen and redox potential were investigated. In particular the device to device repeatabilitys of the pH and dissolved oxygen sensor elements were studied as it was found to be the characteristics of these elements that limit the device lifetimes. Errors of less than 5% for pH sensors and 10% for dissolved oxygen sensors were observed over periods of several months continuous immersion in water. An assessment of useful continuous immersion lifetimes was made for the sensors and possible sensor failure mechanisms are postulated. (C) 1999 Elsevier Science S.A. All rights reserved.

引用

页码：215 / 231

页数：17

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