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This paper describes a new tactile device which produces stress fields in 3D space. Combined with mid-air and/or 3D stereoscopic displays, this device provides high-fidelity tactile feedback for interaction with visual objects. The principle is based on a nonlinear phenomenon of ultrasound; acoustic radiation pressure. The fabricated prototype device consists of 324 airborne ultrasound transducers,...
Humans naturally use both categorical and continuous structures when classifying perceptual experiences. However, design of haptic information displays is eased by the availability of design parameters that can be smoothly modulated along a continuous dimension. Taking guidance from visual and auditory media design, we identified and validated a perceptually successful ldquomorphrdquo function that...
This paper describes development of a wind display system for the TreadPort virtual environment locomotion interface, which is cumulatively known as the TreadPort active wind tunnel (TPAWT). Computational fluid dynamic simulations and experiments with a scaled model test-bed of the system has resulted in a combination of passive and active controls capable of controlling wind speed and angle acting...
We are developing a wearable exoskeleton rotational haptic interface that will fit the human body. First, we developed a force sensor to measure the rotational moment of rotational tasks at the wrist and measured the rotational moment of important tasks. Then, we tried to develop a prototype of the exoskeleton rotational haptic interface.
This paper presents our preliminary research on haptic displays integrated in floor surfaces. We emphasize potential roles for the latter as vibrotactile communication channels that might be seamlessly integrated in everyday environments. We describe the interactive floor component that is the platform for our research, and an application we have developed to support the design of vibrotactile icon...
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