A Novel Stimulation Method Based on a Neuromorphic Mechanoreceptor Model for Haptic Illusion
نویسندگان
چکیده
Vibrotactile stimulation system that generates haptic illusion by employing a RA mechanoreceptor model is developed. The developed stimulator consists of an array of 6 by 4 tiny ultrasonic linear motors [1, 2] with nominal pitch of 2.9mm. Distal pad of human finger with RA mechanoreceptors is modeled using Bensmaia’s RA model [3]. In addition, stimulation characteristics of the motor are calibrated and modeled by measuring a trajectory using laser displacement sensor. Optimization algorithm with subgradient method derives the corresponding spatio-temporal stimulation patterns for 24 motors to provide a specified haptic illusion such as edge.
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