電觸覺的皮膚神經(jīng)機(jī)理仿真及實(shí)驗(yàn)驗(yàn)證
[Abstract]:Tactile technology has been applied in many fields, such as remote control robot, surgical robot, prosthesis, entertainment interactive interface and virtual reality technology, to enhance the maneuverability of human to machine or virtual object. Electric tactile is the main tactile reappearance measure, that is, by changing the frequency, pulse width, intensity and pulse direction of constant current / constant voltage electric pulse, different tactile sense is produced. First of all, the excitation function is derived from the modeling of human skin nerve, and the simulation is carried out. By changing the direction and intensity of the electric pulse applied to the electric stimulation array, Three experimental paradigms were designed to stimulate subcutaneously three stimulators (Meissner tactile corpuscles, Pancinian annular bodies), and 10 subjects took part in the psychophysical experiment, and electrotactile stimulation was performed on the forefinger. The positive pulse was stimulated with different frequency (10: 30) electric pulse for 90 Hz, and the negative pulse was stimulated with different pulse width (150 200 250 300 渭 s) to produce different levels of pressure. The subjects made subjective judgments on the sensory intensity of vibration and pressure. The statistical results show that the experimental model can make the average recognition rate of tactile intensity up to more than 80%, and the best stimulation mode can be found by analyzing the distribution of the stimulation electrode and the current size. Ensure the best tactile reappearance.
【作者單位】: 上海交通大學(xué)機(jī)械與動(dòng)力工程學(xué)院;
【基金】:國家重點(diǎn)基礎(chǔ)研究發(fā)展計(jì)劃(973計(jì)劃)(2011CB013305) 國家自然科學(xué)基金(51075265)
【分類號(hào)】:R318
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