Abstract
Design of cylindrical electromagnetic sensor is discussed. The purpose of this sensor is to detect a change in the conductivity or permittivity of the liquid. If the evaluation frequency is less than 100 kHz, skin effects would be negligible. The proposed sensor consists of two cylindrical sensors, a solenoid coil and a cylindrical capacitor. For an ideal shape condition, estimation methods for inductance and capacitance have been already proposed. However, the practical issues need to be clarified. It starts with fabrication of several coils and capacitors, to confirm the validity of the estimation methods. From experimental results, it was found that, the estimation error and existence of the parasitic element could not be neglected. Liquid detection demonstrations with fabricated sensors are also demonstrated.
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Tashiro, K., Wakiwaka, H., Mori, T., Nakano, R., Harun, N.H., Misron, N. (2015). Experimental Confirmation of Cylindrical Electromagnetic Sensor Design for Liquid Detection Application. In: Mason, A., Mukhopadhyay, S., Jayasundera, K. (eds) Sensing Technology: Current Status and Future Trends IV. Smart Sensors, Measurement and Instrumentation, vol 12. Springer, Cham. https://doi.org/10.1007/978-3-319-12898-6_7
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DOI: https://doi.org/10.1007/978-3-319-12898-6_7
Publisher Name: Springer, Cham
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