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Framework for a Two-step Evaluation of Haptic Displays

机译：触觉显示器两步评估框架

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Haptic displays can greatly facilitate manual control tasks. Their capacity of allowing the operator to perceive the desired dynamics is an important design parameter. However, attempts to evaluate haptic displays on the basis of what dynamics humans actually perceive are scarce. This paper proposes a two-step framework which incorporates the characteristics of human haptic perception into the evaluation of haptic displays. The first step is to evaluate the haptic display based on a recently developed model of the threshold for changes in the perception of system dynamics. It allows us to know the frequency spectrum in which a haptic device alters the operator’s perception of the system dynamics. The second step is then to understand how the perceived dynamic distortions affect the operator’s characterization of the system dynamics. Findings from recent psychophysical studies allow us to relate the changes in perception caused by the haptic device to changes in the perceived mechanical properties of the system. A numerical example illustrates how haptic displays can be evaluated using the proposed framework.
机译：触觉显示可以极大地方便手动控制任务。其允许操作员感知所需动力的能力是重要的设计参数。然而，基于人类实际感知到的动力学评估触觉显示的尝试很少。本文提出了一个包含两步的框架，该框架将人类触觉感知的特征纳入了触觉显示的评估中。第一步是根据最近开发的阈值模型评估触觉显示，以了解系统动态感知的变化。它使我们能够了解触觉设备改变操作员对系统动力学的感知的频谱。然后，第二步是了解感知到的动态失真如何影响操作员对系统动力学的表征。最近的心理物理学研究发现使我们能够将触觉设备引起的感知变化与系统的感知机械性能变化联系起来。一个数字示例说明了如何使用建议的框架评估触觉显示。

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