论文标题
基于涡旋效应
Intensity-Adjustable Non-contact Cold Sensation Presentation Based on the Vortex Effect
论文作者
论文摘要
当人体皮肤受到多种环境时，会感知不同强度的冷感。温度变化的准确表示对于在虚拟现实等应用中引起沉浸式感觉很重要。我们开发了一种基于涡旋效应的强度调整的非接触性冷感觉的方法。我们应用了这种效果，以在大约0°C下产生冷空气，并在较大范围内变化皮肤温度。通过调节冷空气的体积流量，可以引起对不同温度的感知。此外，我们引入了一个冷却模型，以将皮肤温度的变化与各种参数（例如冷空气流量和从冷空气出口到皮肤的距离）相关联。为了进行验证，我们进行了测量实验，发现我们的模型可以以0.16°C的根均值误差估计皮肤温度的变化。此外，我们根据歧视阈值评估了心理学冷歧视实验中原型的性能。因此，可以通过改变参数来产生不同强度的冷感觉。这些冷感觉可以与图像，声音和其他刺激结合在一起，以创建身临其实和现实的人工环境。
Cold sensations of varying intensities are perceived when human skin is subject to diverse environments. The accurate presentation of temperature changes is important to elicit immersive sensations in applications such as virtual reality. We developed a method to elicit intensity-adjustable non-contact cold sensations based on the vortex effect. We applied this effect to generate cold air at approximately 0 °C and varied the skin temperature over a wide range. The perception of different temperatures can be elicited by adjusting the volume flow rate of the cold air. Additionally, we introduced a cooling model to relate the changes in skin temperature to various parameters such as the cold air volume flow rate and distance from the cold air outlet to the skin. For validation, we conducted measurement experiments and found that our model can estimate the change in skin temperature with a root mean-square error of 0.16 °C. Furthermore, we evaluated the performance of a prototype in psychophysical cold discrimination experiments based on the discrimination threshold. Thus, cold sensations of varying intensities can be generated by varying the parameters. These cold sensations can be combined with images, sounds, and other stimuli to create an immersive and realistic artificial environment.
