De-Icing Device with Self-Adjusting Power Consumption and Ice Sensing Capabilities

Nampoothiri, KN and Bobji, MS and Sen, P (2020) De-Icing Device with Self-Adjusting Power Consumption and Ice Sensing Capabilities. In: Journal of Microelectromechanical Systems, 29 (4). pp. 562-570.

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Abstract

Ice accumulation on mechanical structures pose series of safety challenges in daily life. Therefore, it is important to detect the presence of ice and subsequently remove it, thereby hindering its accumulation. We demonstrate an electrode design which can function concurrently as an ice detection and de-icing system. A dielectric coated interdigitated device was fabricated. Ice was generated using a Peltier cooler. By measuring the impedance change of the device with frequency under different conditions (dry and wet), ice was detected. Extent of ice formation can be estimated from the impedance values. Using the same interdigitated electrode device, de-icing was also established by applying a high frequency (50 kHz) and high voltage (200 Vrms) AC signal. The output power of the system was calculated using an equivalent circuit model which also showed that the de-icing system delivers negligible output power in the absence of ice making it energy efficient. For performing de-icing on curved structures, the technique was demonstrated using flexible substrates where interdigitated electrodes were printed on flex polyamide substrates. 2019-0254 © 1992-2012 IEEE.

Item Type:	Journal Article
Publication:	Journal of Microelectromechanical Systems
Publisher:	Institute of Electrical and Electronics Engineers Inc.
Additional Information:	The copyright of this article belongs to Institute of Electrical and Electronics Engineers Inc.
Keywords:	Chemical sensors; Electric power utilization; Electrodes; Energy efficiency; Equivalent circuits; Snow and ice removal, Electrode design; Equivalent circuit model; Flexible substrate; High frequency HF; Inter-digitated electrodes; Interdigitated devices; Mechanical structures; Polyamide substrates, Ice
Department/Centre:	Division of Mechanical Sciences > Mechanical Engineering Division of Interdisciplinary Sciences > Centre for Nano Science and Engineering
Date Deposited:	11 Sep 2020 07:25
Last Modified:	11 Sep 2020 07:25
URI:	http://eprints.iisc.ac.in/id/eprint/66479

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