ABSTRACT

As a result of physiological thermoregulation, human eccrine sweat glands produce sessile droplets on the skin. This paper studies the thermal signatures associated with droplet dynamics on the face and the fingers of an individual using a mid-wave infrared camera. The thermal image analysis focuses on the morphology and evolution of individual droplets induced by various emotional stimuli. We follow the growth and evaporation rate of droplets with different lifetimes ranging from seconds to tens of seconds. The results are of interest in the fields of medicine and psychophysiology (in the studies of human emotional sweating) or physics (for the development of models of evaporative surface cooling).

摘要

由于生理温度调节，人体外分泌汗腺会在皮肤上产生固着的液滴。本文使用中波红外相机研究与个人面部和手指上的液滴动力学相关的热特征。热图像分析侧重于各种情绪刺激引起的单个液滴的形态和演变。我们跟踪不同寿命的液滴的生长和蒸发速率，从几秒到几十秒不等。这些结果在医学和心理生理学（人类情绪出汗的研究）或物理学（用于开发蒸发表面冷却模型）领域具有重要意义。