Perception of Ultrasound Haptic Focal Point Motion

Freeman, E. and Wilson, G. (2021) Perception of Ultrasound Haptic Focal Point Motion. In: 23rd ACM International Conference on Multimodal Interaction (ICMI ’21), Montréal, QC, Canada, 18-22 Oct 2021, pp. 697-701. ISBN 9781450384810 (doi: 10.1145/3462244.3479950)

Abstract

Ultrasound haptic patterns can be rendered by continuously moving an ultrasonic focal point. It is not known how this focal point motion affects haptic perception. We present two psychophysical experiments investigating the perception of an ultrasound haptic focal point moving along a circular path. Our first experiment finds that a sensation of motion is perceived at speeds up to 17 revs–1, similar to the ‘flutter’ sensation. Our second experiment found a linear relationship between movement speed and perceived intensity up to this speed. Our findings give new insight into ultrasound haptic perception and give designers empirical evidence to inform contactless haptic feedback design.

• Item Type: Conference Proceedings
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Wilson, Dr Graham and Freeman, Dr Euan
• Authors: Freeman, E., and Wilson, G.
• College/School: College of Science and Engineering > School of Computing Science
• ISBN: 9781450384810
• Copyright Holders: Copyright © 2021 The Authors
• Publisher Policy: Reproduced in accordance with the copyright policy of the publisher

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Project Code	Award No	Project Name	Principal Investigator	Funder's Name	Funder Ref	Lead Dept
173692		Levitate	Stephen Brewster	European Commission (EC)	737087	Computing Science