Perceived Magnitudes of Vibrations Transmitted Through Mobile Device

Authors:
Jonghyun Ryu;Jaehoon Jung;Seungmoon Choi
Affiliations:
Haptics and Virtual Reality Laboratory, Department of Computer Science and Engineering, POSTECH, Republic of Korea, e-mail: fall@postech.ac.kr.;Haptics and Virtual Reality Laboratory, Department of Computer Science and Engineering, POSTECH, Republic of Korea, e-mail: uzys@postech.ac.kr. Currently with Hyundai Autonet Co.,;Haptics and Virtual Reality Laboratory, Department of Computer Science and Engineering, POSTECH, Republic of Korea, e-mail: choism@postech.ac.kr.
Venue:
HAPTICS '08 Proceedings of the 2008 Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems
Year:
2008

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Abstract

In this paper, we report the design and results of a psychophysical experiment wherein the perceived magnitudes of vibrations with various frequencies (20 x 360 Hz) and amplitudes (6 x 45 dB SL) transmitted to the hand through the mobile device were measured using the absolute magnitude estimation paradigm. For an apparatus, a mini vibration shaker on which a mock-up mobile device was mounted was used. We fitted a non-linear regression model to the measured data in order to obtain the perceived magnitudes in a large range of vibration frequency and amplitude. The findings of this paper can be used to assess the perceptual characteristics of vibrations from mobile device we experience everyday.