Mid-Air Ultrasonic Stimulations of the Palm - The Influence of Frequency and Stimulus Duration on Perceived Intensity

Conference paper (2019)

Authors

K.K. Driller Human Information Communication Design - IDE
William Frier Ultrahaptics, Glass Wharf, Bristol BS20EL, UK
S.C. Pont Human Information Communication Design - IDE
J. Hartcher-O'Brien Human Information Communication Design - IDE
Research Group
Human Information Communication Design (IDE) (TU Delft)
Copyright: © 2019 K.K. Driller, William Frier, S.C. Pont, J. Hartcher-O'Brien
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Published Date

2019

Language

English

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Faculty

Industrial Design Engineering

Department

Human-Centered Design

Research Group

Human Information Communication Design

Abstract

It is known that the duration of a short stimulus affects the perceived intensity of both visual, auditory, and, vibrotactile events, but it is still unclear whether such a relationship also exists for mid-air ultrasonic inputs to the hand. Here we investigate this issue and show how the perceived intensity of focused ultrasonic stimulations of the palm is indeed systematically related to stimulus duration - a relationship that is, however, independent of modulation frequency. This is an important finding for the overall goal of providing perceptually stronger inputs and enlarging the repertoire of realistic mid-air haptic experiences.