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First Joint Eurohaptics Conference and Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems (WHC'05)
Ultrasound Tactile Display for Stress Field Reproduction — Examination of Non-Vibratory Tactile Apparent Movement
Pisa, Italy
March 18-March 20
ISBN: 0-7695-2310-2
Takayuki Iwamoto, University of Tokyo
Hiroyuki Shinoda, University of Tokyo
We developed a new tactile display using acoustic radiation pressure. The display can produce a 1 mm diameter focal point and 2 gf total force. By steering the focal point using a linear phased array, the display creates various precise spatiotemporal patterns of pressure distribution on the skin. We conducted experiments on "tactile apparent movement" with the tactile display and found that even if the successive stimuli were not vibrations but simple indentations, tactile apparent movement was evoked. When the intervals of the indentations were between 10 ms and 40 ms, discriminating between actual stroking and apparent movement was quite difficult.
Citation:
Takayuki Iwamoto, Hiroyuki Shinoda, "Ultrasound Tactile Display for Stress Field Reproduction — Examination of Non-Vibratory Tactile Apparent Movement," whc, pp.220-228, First Joint Eurohaptics Conference and Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems (WHC'05), 2005
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