NDLI: Producing distributed vibration by a single piezoelectric ceramics for a small tactile stimulator

Content Provider	IEEE Xplore Digital Library
Author	Konyo, M. Motoki, Y. Yamada, H. Tadokoro, S. Maeno, T.
Copyright Year	2008
Description	Author affiliation: Grad. Sch. of Inf. Sci., Tohoku Univ., Sendai (Konyo, M.; Motoki, Y.; Yamada, H.; Tadokoro, S.)
Abstract	A small tactile display that can be attached to a mobile terminal device or a handheld game controller will enhance user experience in virtual worlds. This paper proposes an ultrasonic vibrator which has a compact mechanism to produce vibratory stimulation on human skin using a pin array driven by a single piezoelectric actuator. Amplitude modulations of the ultrasonic vibration can generate tactile sensations even if a finger is fixed on the vibrator. To generate enough stimulation to deform the skin, resonance of the piezoelectric actuator was designed. We proposed a new mechanical design method to arrange arbitrary distributions of vibration for the pin array using the principle of a dynamic vibration absorber. Detailed designs were conducted by finite element analysis. We successfully designed a smart vibrator which had a size of 17 times 17 times 3.65 mm and a weight of about 4 g. The vibrator could mount on the joystick of the PlayStation2 controller. Trial experiments of tactile presentation showed that the prototype vibrator could generate vibratory feelings in the range of 30 - 50 Hz and 200 - 300 Hz. In addition, stimulation corresponding to joystick operation generated some rubbing-like sensation.
Starting Page	3698
Ending Page	3704
File Size	846607
Page Count	7
File Format	PDF
ISBN	9781424420575
DOI	10.1109/IROS.2008.4651042
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-09-22
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Vibrations Acoustics Shock absorbers Pins Admittance Ceramics Shape
Content Type	Text
Resource Type	Article

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