Universiti Teknologi Malaysia Institutional Repository

Development of planar electromagnetic sensors for measurement and monitoring of environmental parameters

Md. Yunus, Mohd. Amri and Mukhopadhyay, S. C. (2011) Development of planar electromagnetic sensors for measurement and monitoring of environmental parameters. Measurement Science and Technology, 22 (2). 001-009. ISSN 0957-0233

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Official URL: http://dx.doi.org/10.1088/0957-0233/22/2/025107

Abstract

Novel planar electromagnetic sensors designed, fabricated and tested for environmental monitoring are reported in this paper. Intensive modelling of the sensors is also discussed. Experiments were conducted to obtain the impedance characterization for each sensor and the results were compared with the simulation results. The sensors have been tested to detect nitrate contamination in distilled water from two sets of experiments. First, two nitrate forms, namely sodium nitrate (NaNO3) and ammonium nitrate (NH 4NO3), each of different concentration between 5 and 20 mg dissolved in 1 litre of distilled water, were used to observe the sensor response. Second, NaNO3 and NH4NO3 were mixed in several different ratios in 1 litre of distilled water and the responses of the sensors were observed. The best sensor has been determined based on the interpretation from both nitrates' experimental results. Preliminary results show that the best sensor can very well detect the presence of nitrate added in distilled water and can distinguish the concentration level. The work and improvement for future consideration are also discussed in this paper.

Item Type:Article
Uncontrolled Keywords:environmental monitoring, nitrate detection, planar electromagnetic sensors, water contamination detection
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:28827
Deposited By: Liza Porijo
Deposited On:29 Nov 2012 06:23
Last Modified:29 Nov 2012 06:23

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