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Detection and localization of changes in two-dimensional temperature distributions by electrical resistance tomography

机译：电阻断层扫描的二维温度分布变化的检测与定位

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This paper studies the feasibility of applying electrical resistance tomography (ERT) to detect changes in two-dimensional (2D) temperature distributions with potential applications in sensor development. The proposed sensor consists of a thin layer of porous metal film manufactured by spraying colloidal copper paint to a solid surface. A change of the temperature distribution on the surface changes the 2D distributed electrical conductivity of the metal film. The change of the electrical conductivity is localized and quantified with ERT, and further, to convert the estimated conductivity change of the sensor to temperature change, an experimentally developed model is used. The proposed temperature sensor is evaluated experimentally by applying it to a polymeric substrate, and exposing it to known temperature changes using heat sources of different shapes. The results demonstrate that the proposed sensor is capable of detecting and localizing temperature changes, and provides at least qualitative information on the magnitude of the temperature change.
机译：本文研究了应用电阻断层摄影（ERT）来检测具有传感器开发中潜在应用的二维（2D）温度分布变化的可行性。所提出的传感器由通过将胶体铜涂料喷涂到固体表面而制造的薄层多孔金属膜。表面上温度分布的变化改变了金属膜的2D分布式电导率。电导率的变化是用ERT定位和量化的，并且为了将传感器的估计电导率变化转换为温度变化，使用实验开发的模型。通过将其施加到聚合物基板上，通过将所提出的温度传感器进行了实验评估，并使用不同形状的热源将其暴露于已知的温度变化。结果表明，所提出的传感器能​​够检测和定位温度变化，并至少提供关于温度变化的大小的定性信息。

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