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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...
In this paper, nonlinear dynamic response of a traveling wave type ultrasonic motor is investigated. In particular, understanding the transient dynamics of a bar-type ultrasonic motor, such as starting- up and stopping, is of primary interest. First, the transient response of the bar-type ultrasonic motor at starting-up and stopping was measured using Laser Doppler Velocimeter (LDV), and its driving...
In this paper, nonlinear dynamic response of a traveling wave-type ultrasonic motor was investigated. In particular, understanding the transient dynamics of a bar- type ultrasonic motor, such as starting up and stopping, is of primary interest. First, the transient response of the bar-type ultrasonic motor at starting up and stopping was measured using a laser Doppler velocimeter, and its driving...
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