RT Journal Article
JF IEEE Transactions on Haptics
YR 2010
VO 3
SP 155
TI Noncontact Tactile Display Based on Radiation Pressure of Airborne Ultrasound
A1 Takayuki Iwamoto,
A1 Hiroyuki Shinoda,
A1 Takayuki Hoshi,
A1 Masafumi Takahashi,
K1 Emerging technologies
K1 haptic I/O
K1 tactile displays
K1 3D displays
K1 virtual reality.
AB This paper describes a tactile display which provides unrestricted tactile feedback in air without any mechanical contact. It controls ultrasound and produces a stress field in a 3D space. The principle is based on a nonlinear phenomenon of ultrasound: Acoustic radiation pressure. The fabricated prototype consists of 324 airborne ultrasound transducers, and the phase and intensity of each transducer are controlled individually to generate a focal point. The DC output force at the focal point is 16 mN and the diameter of the focal point is 20 mm. The prototype produces vibrations up to 1 kHz. An interaction system including the prototype is also introduced, which enables users to see and touch virtual objects.
PB IEEE Computer Society, [URL:http://www.computer.org]
SN 1939-1412
LA English
DO 10.1109/TOH.2010.4
LK http://doi.ieeecomputersociety.org/10.1109/TOH.2010.4