Haptic Actuator

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Haptic Actuator

Modular Pin-Array Tactile Device 

Overview:

In this research, we propose tiny modular pin-array tactile device which can minimize the time of design, can increase the number of configuration, and can take ease maintenance. To construct this modular tactile device, we first design a tiny solenoid tactile actuator based on solenoids. Thus, this device has the advantages of simple design, straightforward configuration, and easy maintenance.  the result clearly showed that the proposed tactile device generates sufficient output force to stimulate human skin over a wide frequency bandwidth and conveys a variety of vibrotactile sensations to users. 

Publication :

S.Y. Kim, H.G. An, and T.H. Yang, "A New Modular Pin-Array Tactile Device," International Journal of Precision Engineering and Manufacturing, Vol. 16, No. 8, pp. 1745-1751, 2015 [click] 

Soft Vibrotactile Actuator Based on ePVC Gel 

Overview:

A soft vibrotactile actuator made by mixing silicon dioxide SiO2 nanoparticles and plasticized PVC gel. The effect of the silicon dioxide nanoparticles in the plasticized PVC gel for the haptic performance is examined in terms of electric, dielectric, and mechanical properties. Furthermore, eight soft vibrotactile actuators are prepared as a function of the SiO2 content. 

Publication :

W.H. Park, E.J. Shin, S. Yun, and S.Y. Kim, "An Enhanced Soft Vibrotactile Actuator Based on ePVC Gel with Silicon Dioxide Nanoparticles," IEEE Transactions on Haptics, Vol. 11, No. 1, 2018. [click] 

Impact Vibration Actuator 

Overview:

In this research, we developed a miniature impact type actuator, which has wide enough frequency range to selectively stimulate mechanoreceptors, consisting of a mass, an elastic spring, a housing, and a solenoid. To create strong impact force in wide frequency range in real-time, we adopt an unstable structure. Due to the effect of fast increase and decrease timings, the proposed vibration actuator can be created over wide frequency range. 

Publication :

T.H. Yang, D. Pyo, S.Y. Kim, and D.S. Kwon, "Development and Evaluation of an Impact Vibration Actuator Using an Unstable Mass for Mobile Devices," International Journal of Control, Automation and Systems, Vol. 14, No. 3, pp.827-834, 2016  [click]