Sensing of heat source in a deep layer by considering heat propagation
Sensing of heat source in a deep layer by considering heat propagation
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DOI：
10.1541/ieejjia.7.229
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发表时间：
2018-05
影响因子：
1.7
通讯作者：
Yukiko Osawa;S. Katsura
中科院分区：
文献类型：
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作者：
Yukiko Osawa;S. Katsura
利用热界面的人类感知和触觉传输对于支持人类生活或与偏远地区的人进行通信是必要的。例如，这些设备用于远程医疗保健、远程手术等。许多研究利用Peltier器件作为热界面，对器件的控制和传感也有很多研究。然而，在这些研究中，大多数没有考虑系统中的热传播，只有附着在传感器上的点可以被观察和控制。特别是，这对医疗保健系统来说是一个问题，因为很难获得有关人体内部的信息，而人体内部又很难安装传感器。为了解决这一问题，本研究考虑了人体等材料的热传播，建立了基于热扩散方程的模型。在冷却材料的情况下，热传播的变化取决于材料的条件，例如，热源的存在，如癌细胞。基于材料的热特性，提出了一种利用热传播法获取材料热流的方法。通过使用所提出的方法，可以在材料的深层中找到热源，而无需在材料内部附加任何传感器。以铝圆柱为传播材料进行了实验，验证了该方法的有效性。
Human sensing and tactile transmission utilizing thermal interface are necessary to support human life or for communicating with people in remote locations. For instance, the devices are used for remote health care, telesurgery, and so on. Many studies have utilized a Peltier device as the thermal interface, and there are many studies on the control and sensing of the device. However, in most of those studies, the heat propagation in the system is not considered, and only the point that is attached to the sensor can be observed and controlled. In particular, this is a problem for health care systems, because it is difficult to obtain information about the inside of the human body where it is hard to attach the sensor. In order to solve this problem, this study considers the heat propagation of materials such as the human body by developing a model based on the thermal diffusion equation. In the case of cooling material, heat propagation changes depending on the material condition, for example, the presence of heat source such as a cancer cell. Based on the thermal characteristics, a method to obtain the heat flow of material using heat propagation is proposed in this paper. It is possible to find a heat source in deep layers of a material by using the proposed method without attaching any sensor inside the material. Some experiments are conducted using aluminum cylinder as a propagation material to verify the validity of the proposed method.