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Haptic Rendering of Curved Surface by Bending an Encountered-Type Flexible Plate

Seokhee JEON

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Summary :

An encountered-type haptic interface generates touch sensation only when a user's hand “encounters” virtual objects. This paper presents an effective encountered-type haptic interface that enables rendering of surfaces with variable curvature. The key idea is to systematically bend a thin elastic plate so as to create a curved surface with desired curvature, which becomes a contacting end effector that follows the user's finger and becomes an interface a user can touch when needed. The pose of the curvature is controlled in a way that it corresponds to the curved surfaces of virtual objects and user's finger position. The idea is realized by attaching two commercial haptic interfaces to both edges of a thin acryl plate and squeezing the plate. This setup allows us to generate a cylindrical object with curvature up to 0.035 mm-1 and gives 3DOF position control and 1DOF rotational control of the curved surface. Achievable workspace and curvature range are analyzed, and the feasibility and physical performance are demonstrated through a visuo-haptic grabbing scenario. In addition, a psychophysical experiment shows perceptual competence of the proposed system.

Publication
IEICE TRANSACTIONS on Information Vol.E99-D No.7 pp.1862-1870
Publication Date
2016/07/01
Publicized
2016/04/19
Online ISSN
1745-1361
DOI
10.1587/transinf.2015EDP7463
Type of Manuscript
PAPER
Category
Human-computer Interaction

Authors

Seokhee JEON
  Kyung Hee University

Keyword