Haptic Texture Rendering and Perception Using Coil Array Magnetic Levitation Haptic Interface: Effects of Torque Feedback and Probe Type on Roughness Perception

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2016-05
Authors
Aghajani Pedram, Sahba
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[Honolulu] : [University of Hawaii at Manoa], [May 2016]
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Abstract
A Novel maglev-based haptic platform was deployed to investigate the effects of torque feedback and stylus type on human roughness perception. For this purpose, two haptic probes, fingertip and penhandle, were 3D printed each with one and four embedded magnets respectively. Three different torque renderings namely No Torque, Slope Torque, and Stiff Torque were developed, in tendem with penetration-based force feedback to render simulated surfaces. The main difference between these conditions was the amount and type of active torque that was generated. Conventional magnitude estimation experiment for data gathering and analysis was performed. The results of the experiment showed strong effects of wavelength within all torques and probes. Participants rated surfaces rougher in the Slope Torque and with the fingertip compared to penhandle. These results revealed new means of torque-based surface generation that lead to higher roughness perception. The outcomes also highlight the importance of probe type on human roughness perception.
Description
M.S. University of Hawaii at Manoa 2016.
Includes bibliographical references.
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Texture Rendering, Sinusoidal Surfaces, Roughness Perception, Magnetic Levitation Haptic Interface, Torque Feedback, Stylus Shape, Probe Type
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Theses for the degree of Master of Science (University of Hawaii at Manoa). Mechanical Engineering
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