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为了有效地探测人体内部异常热源信息,基于傅里叶定律和能量守恒定律建立了含球状热源的传热微分方程,通过表面等温线分布求解微分方程,得到表面温度分布与内部异常热源的深度、大小和温度之间的关系,从而建立体表面温度分布与体内球状异常热源之间的球状热源传热模型;采用有限元分析软件COMSOL对该模型进行模拟仿真和数值分析,同时利用红外热像仪采集实体模型的表面温度分布,逆向求解内热源信息。将仿真分析和实际数值分析得到的内部异常热源信息与实际对比,两者所得的结果与实际达到毫米级误差。
In order to effectively detect the abnormal heat source information inside the human body, a heat transfer differential equation with a spherical heat source is established based on the Fourier law and the law of conservation of energy. The surface temperature distribution and the depth of the internal abnormal heat source are obtained by solving the differential equation by surface isotherm distribution, Size and temperature, so as to establish a spherical heat source heat transfer model between the body surface temperature distribution and the spherical abnormal heat source. The finite element analysis software COMSOL was used to simulate and analyze the model. At the same time, Collect the surface temperature distribution of the solid model and inversely solve the internal heat source information. The simulation results and actual numerical analysis of the internal abnormal heat source information and the actual comparison, the results obtained and the actual millimeter error.