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首页> 外文会议>Human System Interactions, 2009. HSI '09 >Tactile display using the vibration of SMA wires and the evaluation of perceived sensations
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Tactile display using the vibration of SMA wires and the evaluation of perceived sensations

机译：利用SMA线的振动进行触觉显示并评估感知的感觉

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摘要

Shape-memory alloys (SMAs) are the metals which have the shape-memory effect. An alloy has peculiar temperature Tp, and the shape memory effect is observed when the body temperature is cooled to below Tp. The effect has been widely applied in different fields such as robotic muscles, medical surgeries, actuators and elastic wires. The SMA also has a unique characteristic to shrink at a certain temperature. The authors found a novel and interesting effect that, by making the SMA into a fine wire, it accepts a pulse-signal to generate a vibration in accordance with the pulse frequency of the signal, and have developed a vibration actuator for presenting tactile stimuli. By coupling the devices as a pair, a tactile display was constructed for presenting the phantom sensation and the apparent movement of the tactility, to transmit quite novel tactile sensations to a user. The information transmission by the device was tested by subjects, and was evaluated by questionnaires. The apparent movement was especially well perceived by users as a sensation of something running across fingers and a palm, or as being tapped by something, according to the well-determined signals given to the display. Several users reported that they perceived a novel rubbing sensation given by the apparent movement, and we further experimented the presentation of the sensation in detail to be used as a tactile display for the information transmission.
机译：形状记忆合金（SMA）是具有形状记忆效应的金属。合金具有特殊的温度Tp，并且当人体温度冷却到Tp以下时，可以观察到形状记忆效应。该效果已广泛应用于不同领域，例如机器人肌肉，医疗手术，执行器和弹性线。 SMA还具有在特定温度下收缩的独特特性。作者发现了一种新颖而有趣的效果，即通过将SMA制成细线，它接受脉冲信号以根据信号的脉冲频率产生振动，并开发出了一种可提供触觉刺激的振动致动器。通过将设备成对耦合，构造了触觉显示器，以呈现幻影感和触觉的明显运动，以将非常新颖的触感传递给用户。该设备的信息传输经过受试者测试，并通过问卷进行了评估。根据提供给显示器的确定的信号，用户特别容易感觉到明显的运动是手指或手掌上碰到某物的感觉，或被某物轻拍。几位用户报告说，他们感觉到了由表观运动给人的一种新颖的摩擦感觉，我们进一步对这种感觉的表现进行了详细的实验，以用作信息传输的触觉显示器。

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