Dataset for finger motion and contact by a second finger influence the tactile perception of electrovibration

Electrovibration holds great potential for creating vivid and realistic haptic sensations on touchscreens. Ideally, a designer should be able to control what users feel independent of the number of fingers they use, the movements they make, and how hard they press. We sought to understand the perception and physics of such interactions by determining the smallest 125 Hz electrovibration voltage that fifteen participants could reliably feel when performing four different touch interactions at two normal forces. The results proved for the first time that both finger motion and contact by a second finger significantly affect what the user feels. At a given voltage, a single moving finger experiences much larger fluctuating electrovibration forces than a single stationary finger, making electrovibration much easier to feel during interactions involving finger movement. Indeed, only about 30% of participants could detect the stimulus without motion. Part of this difference comes from the fac...电振动（electrovibration）在触摸屏上生成生动逼真的触觉感知方面极具应用潜力。理想状态下，设计师应当能够独立于用户的触控手指数量、执行的动作以及按压力度，精准控制用户所感知到的触觉效果。本研究旨在通过测定15名受试者在两种法向压力下完成4种不同触控交互时，能够可靠感知到的最小125Hz电振动电压，以探究此类交互的感知机制与物理特性。研究结果首次证实，手指移动与第二根手指的接触均会显著影响用户的触觉感知。在相同电压下，移动的单根手指所感受到的波动式电振动力远大于静止的单根手指，这使得在涉及手指移动的交互中，电振动的感知难度大幅降低。实际上，仅有约30%的受试者能够在无手指移动的情况下感知到该刺激。此类感知差异的部分原因来自于……