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Journal of Applied Sciences
  Year: 2008 | Volume: 8 | Issue: 9 | Page No.: 1699-1705
DOI: 10.3923/jas.2008.1699.1705
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Design and Performance of a Cylindrical Capacitive Sensor to Monitor the Electrical Properties

H. Golnabi and P. Azimi

In this study, design and operation of a cylindrical capacitive sensor based on the dielectric and reactance capacitance changes of the gap medium is reported. The proposed system was used to determine the electrical properties of different water liquids as a result of the capacitance variations. For capacitance measurement, the cylindrical gap can be filled up by water liquids under study, the electrical characteristics of different water liquids, mixture of ethanol and water, mixture of methanol and water, mixture of petroleum and water and other liquid mixtures were studied. In this research a big difference about 16200 nF was noticed in the measured capacitance of the corresponding liquids. It must be pointed out that the measuring capacitance of the sensor is different from that of the liquid capacitance, but the liquid electrical characteristics can be compared relatively with each other. The experimental results are promising for water liquids and verify the successful operation of such device as a liquid sensor and is a useful method for checking the electrical quality of the water mixture that is required for different applications.
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  •    Effect of the Reactance Term on the Charge/discharge Electrical Measurements using Cylindrical Capacitive Probes
  •    Investigation of Conductivity Effects on Capacitance Measurements of Water Liquids Using a Cylindrical Capacitive Sensor
How to cite this article:

H. Golnabi and P. Azimi, 2008. Design and Performance of a Cylindrical Capacitive Sensor to Monitor the Electrical Properties. Journal of Applied Sciences, 8: 1699-1705.

DOI: 10.3923/jas.2008.1699.1705






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