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 $\text{V}_{\mathrm {rms}}$ ) 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]

中文翻译：

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具有自调节功耗和冰感应功能的除冰装置

机械结构上的积冰给日常生活带来了一系列安全挑战。因此，重要的是检测冰的存在并随后将其移除，从而阻碍其积累。我们展示了一种电极设计，它可以同时用作冰检测和除冰系统。制造了介电涂覆的叉指装置。冰是使用珀耳帖冷却器产生的。通过测量器件在不同条件（干湿）下随频率变化的阻抗变化，检测到冰。可以从阻抗值估计结冰的程度。使用相同的叉指电极装置，还通过施加高频 (50 kHz) 和高压 (200 $\text{V}_{\mathrm {rms}}$ ) 交流信号来建立除冰。该系统的输出功率是使用等效电路模型计算的，该模型还表明除冰系统在没有冰的情况下提供的输出功率可以忽略不计，从而使其节能。为了对弯曲结构进行除冰，该技术使用柔性基板进行了演示，其中交叉电极印刷在柔性聚酰胺基板上。[2019-0254]