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Human vibrotactile detection experiments were used to compare temporal sinusoids displayed on three commercial haptic devices to a high-fidelity linear voice-coil actuator. The three commercial haptic devices we used span the cost spectrum, supposing that cost of a device is correlated with the fidelity of its virtual textures. This turned out not to be the case. The results indicated that none of...
We have developed two different magnetic levitation devices which provide unprecedented ranges of motion in both translation and rotation to a levitated handle to be used for tool-based haptic interaction. The first device levitates a handle attached to a thin spherical shell of flat coils suspended in permanent magnet fields using Lorentz forces. A novel coil type and magnet configuration provides...
During real physical interactions, contact between a hand-held tool and an object causes high-frequency tool accelerations that are detected by mechanoreceptors in the human hand. These haptic signals provide salient cues about changes in tool-surface contact state and enable effortless identification of material and surface properties. Unfortunately, these rich contact sensations are often absent...
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