Title :
Spatial low pass filters for pin actuated tactile displays
Author :
Lee, Jaime M. ; Wagner, Christopher R. ; Lederman, S.J. ; Howe, Robert D.
Author_Institution :
Harvard Univ., MA, USA
Abstract :
A common tactile display design uses an array of mechanical pins covered by a rubber layer which acts as a spatial low pass filter. To characterize the perceptual relationship between this rubber layer and shape rendering, we conducted psychophysical experiments to examine the perception of a vertical line stimulus felt using rubber covers of varying thickness and stiffness. We found no significant change in perception for rubber thicknesses ranging from 1.5-3.0 mm and for stiffnesses ranging from 45-200 kN/m2.
Keywords :
haptic interfaces; human factors; low-pass filters; force feedback; mechanical pins; perception; perceptual relationship; psychophysical experiments; shape rendering; spatial low pass filter; tactile display; Coils; Displays; Force feedback; Low pass filters; Minimally invasive surgery; Pins; Pneumatic actuators; Psychology; Rubber; Shape memory alloys;
Conference_Titel :
Haptic Interfaces for Virtual Environment and Teleoperator Systems, 2003. HAPTICS 2003. Proceedings. 11th Symposium on
Print_ISBN :
0-7695-1890-7
DOI :
10.1109/HAPTIC.2003.1191230