چند سنسور در تکنولوژی فیلم ضخیم برای کنترل کیفیت آب
|کد مقاله||سال انتشار||تعداد صفحات مقاله انگلیسی||ترجمه فارسی|
|4735||2005||7 صفحه PDF||سفارش دهید|
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Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)
Journal : Sensors and Actuators A: Physical, Volume 120, Issue 2, 17 May 2005, Pages 589–595
A set of sensors for water quality measurement has been developed. It consists of a multisensor designed to measure the following parameters: pH, temperature, dissolved oxygen, conductivity, redox potential and turbidity. The system has been built-up in thick-film technology, using when possible commercially available serigraphic pastes. The multisensor can be implemented in in situ portable or stationary instrumentation for water quality monitoring. The technology used in the multisensor implementation provides fundamental properties of miniaturization, reasonable precision and low cost. The complete system also includes electronic acquisition, signal conditioning and computing capabilities.
Traditionally the control of water quality has been carried out by means of sampling, transport and further analysis at the laboratory. Although this is a current methodology comprising some advantages, it also shows a number of drawbacks. For instance, there usually is a long gap between sampling and detection of a certain kind of contamination; data are not obtained continuously; data are collected only at a small number of fixed sampling locations and these methods might miss small-scale variations. Additionally, some water quality parameters can only be determined in situ, and the sampling-transport-analysis protocol is, in general, accurate but expensive. Many of these disadvantages can be solved by using water quality remote sensing technologies via the development of in situ and/or stand-alone water quality instrumentation. In this respect there is an increasing interest in the development of single, compact multiparametric integrated flexible instrumentation capable of meeting changing water quality control needs. Following this timely area of research we show here the development of multiparametric instrumentation for water quality measurement. The system is prepared to measure in situ the following parameters of interest: pH, temperature, dissolved oxygen, conductivity, ORP (redox potential) and turbidity. The developed system is simple and compact and has been manufactured using thick-film technology.
نتیجه گیری انگلیسی
In summary, a set of sensors including temperature, conductivity, redox potential, pH and dissolved oxygen in thick film technology for water quality measurements has been developed. The whole system has been made using thick film fabrication protocols employing, when possible, commercially available serigraphic pastes. The system lodged on a PVC housing can be used as simple multiparametric probe or can be incorporated in a small, portable and stand-alone integrated system for in situ water quality monitoring. The reduced size and low cost of the set of sensors makes them suitable for a wide range of applications.