Non-contact Cold Thermal Display by Controlling Low-temperature Air Flow Generated with Vortex Tube

Non-contact Cold Thermal Display by Controlling Low-temperature Air Flow Generated with Vortex Tube
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控制涡流管产生的低温气流实现非接触式冷热显示

DOI:
10.1109/whc.2019.8816089
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发表时间:
2019
期刊:
2019 IEEE World Haptics Conference (WHC)
影响因子:
--
通讯作者:
O. Oshiro
O. Oshiro
中科院分区:
--
文献类型:
--
作者:
Jiayi Xu;Yoshihiro Kuroda;Shunsuke Yoshimoto;O. Oshiro

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近年来,人们对热显示技术进行了深入的研究,以表现物体更真实的触觉质量。由于人在不接触其他物体的情况下感受空气的温度,因此有必要以非接触的方式呈现热感觉。对非接触式热显示进行了研究;然而,很少有研究报道了一种可以以非接触方式显示冷的设备。在本研究中,我们提出了一种使用低温热源-涡流管的非接触式冷热显示器,当提供压缩空气时,它可以产生超低的空气温度。我们建立了一个将冷空气流速与皮肤吸收热量联系起来的冷却模型;我们实现了一个原型系统,可以控制产生的空气的流速;我们做了一个实验来检验这个系统所能呈现的冷感。我们的研究结果显示,可以产生各种各样的冷感,所以流速越快,用户就会感到越冷。
In recent years, thermal display has been studied intensively in order to represent a more realistic tactile quality of the object. Since human feels the temperature of the air without touching other objects, it is necessary to present thermal sensation in a non-contact manner. Studies on non-contact heat display have been explored; however, few studies have reported on a device that can display cold in a non-contact manner. In this study, we propose a non-contact cold thermal display using a low-temperature heat source—vortex tube, which can generate ultra-low air temperature when supplied with compressed air. We developed a cooling model that relates the flow velocity of cold air with the absorbed heat from skin; we implemented a prototype system that can control the flow velocity of the generated air; and we conducted an experiment to examine the cold sensation that the system can present. Our results revealed that various cold sensations can be generated so that the faster the flow velocity, the colder a user would feel.
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