Multisensor Portable Meter for Environmental Applications

Abstract

In recent years the development of information and communication technologies (ICT) has notably improved the water management processes, but the technologies for water quality control still leave much scope for improvement. Specially, in-situ and in-line water monitoring has an increasing interest in order to take decisions at real time. The main drawbacks of the current portable meters are their high cost and their high power consumption. In this work it is proposed a portable compact meter for measuring simultaneously oxidation-reduction potential (ORP), conductivity, temperature and amperometric parameters like chlorine. This system includes microsensors fabricated with microelectronic technologies, and a commercial temperature sensor, all them allowing a very low power consumption. Validation of the system has been carried out using standard solutions and comparing the results with commercial sensors. The response characteristics of sensors, in terms of sensitivity and repeatability, showed a good agreement with those obtained with standard equipment using the same microelectrodes.Index Terms-Portable equipment, microsensors, water monitoring, multiparametric analysis. 1530-437X (c)

Portable Electronic Tongue Based on Microsensors for the Analysis of Cava Wines

“…A detailed explanation of the electronic design, software for data collection, and global performance of this equipment is presented in [23]. …”

“…These sensors were also characterized before the analysis using the multisensor meter. The response characteristics are reported in [23], including the conductivity calibration and the ORP test obtained with the four-electrode sensors.…”

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A self-calibrating and multiplexed electrochemical lab-on-a-chip for cell culture analysis and high-resolution imaging

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Live Demonstration: A Portable Microsensor Fusion System with Real-Time Measurement for On-Site Beverage Tasting

“…1. It employs two compact low-power multisensor meters [3], [4] to read out an array of microdevices formed by one conductivity sensor, one redox potential sensor, and two amperometric gold microelectrodes, together with six ISFETs sensitive to pH, Figure 1.…”