心得：

自學生從 2001 年於華錄生物電子任職時開始接觸到 Electrotactile (電觸覺)之相關資訊，直至 2008 年決定再以電觸覺為論文內容之主軸，以 致於 2011 年將內容逐漸完成，前後約十年之時間，但就電觸覺的相關研究 來說，帄心而論進展並不大，十年來對於虛擬實境的研究相當廣泛，但在 電觸覺這一領域，仍侷限在美國與日本兩個國家的既定幾個大學有特定的 教授持續的在探索此領域，故以其他科技的進展來比較，此區塊之技術深 度進度是有限的。

較令人振奮的最新訊息是 2010 年 5 月份的崁入式系統展覽，日本 Toshiba 公司展示了一款觸感回饋的原形裝置 Touchpanel Tactile Feedback - Toshiba "New Sensation UI Solution" ，這是第一家企業在正式的商業展覽 上展出的電觸覺回饋原型裝置，就此類裝置的應用有著重大的意義，代表 著在商業價值上，有大型企業認可其可發展為產品的潛力。

圖 84 Toshiba “New Sensation UI Solution”

http://www.diginfo.tv/2010/05/21/10-0073-r-en.php

如同前述，神經傳導的電流型態仍有待深入的研究與發掘，人體的敏 感度與電阻差異值的個體差異會是非侵入式電觸覺裝置最大的困難之處，

一則也許要靠一種很完善的 calibration 機制來調整個人最佳化的參數 設定，一則是將來可驗證神經傳導路徑的電流與藉由皮膚表面直接輸入電

流的對應關聯性，方能直接以皮膚表面給予電流刺激達到觸覺迴授的效 果。

然而就目前的觸覺迴授裝置，能夠商業化的也僅有以機械驅動器震動 的方時來模擬觸覺的感受，仍無法百分百的將觸覺百分百的進行遠端的迴 授或重現，除非藉由類似 3.2.2 提到大型矩陣式線性驅動器之裝置來重現 遠端實際的表面形狀及粗糙度，方能達到一定程度的觸覺迴授，然而那相 對的是觸摸實體的重現，而非觸感的重現。

因此，就裝置的回饋細膩程度來說，其實目前觸覺迴授的裝置所能傳 達的感受都還相當有限，然而若單獨以人體較能接受的電流型態（較為舒 適而明確，測詴者感受差異最小的頻率與電流大小及電壓之波形），相對於 需要機械式驅動器的震動觸覺迴授裝置，電觸覺的迴授裝置仍具備了 7.1.3 當中提到的優點：耗能最小（最經濟），需要體積最小（不需機械式 驅動零件），不受人體皮膚形狀之限制。因此仍可被視為一個理想的觸覺迴 授裝置，且相對於目前已經開發應用的震動式裝置，還有更多的豐富性，

這也是學生認為值得於多年後再次投入時間學習與研究之原因。

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