電容式觸摸感應從異國情調到日常

　　本文介紹了觸摸傳感和開關技術的發展。電容傳感技術。產品被包括獨立的電容傳感控制器IC和微控制器（MCU），包括觸摸感應作為外設功能。

　　電容式觸摸感知經歷了爆炸式的增長，成為幾類消費產品的默認人機界面。平板電腦、智能手機、便攜式媒體播放器和GPS系統的用戶現在都希望有一個先進而靈敏的觸摸界面。反過來，這也改變了用戶對智能設備和家用電器市場的期望；現在消費者開始使用TAP、拖動、刷卡和捏的語言進行預編程。高端產品不提供用戶交互模式的風險被“酷”。

　　2012推出的Windows 8只增強了觸摸界面的擴散，促使平板電腦和個人電腦制造商在便攜式計算領域嘗試新的格式。那些將觸摸現象視為從智能手機/數字助理空間演變而來的人認為微軟的Surface產品是一種相對大的屏幕格式；然而其他PC制造商正在用更大的平板式產品測試市場。從它唯一的接口——智能手機——進入鍵盤不可或缺的空間的角度來看，很可能會看到消費者與技術交互方式的進一步發展。

　　In fact， the touch paradigm appeared in the PC market early in its development. Hewlett-Packard offered a product in the 1980s that used a touch interface， although that used infrared sensing to detect the presence and location of a finger. The first mentions of touch interfaces associated with screens date back decades earlier， with historical accounts quoting an early capacitive-touch system conceived as a means of interfacing with a radar system.

　　Prior to the current upswing in deployment of touch technology， most consumers‘ experience of the technology was limited to a small number of applications， largely in areas such as vending kiosks/ATMs. Those mostly used resistive touch technology， or occasionally infrared （where an X/Y matrix of IR beams is placed immediately above the screen） and were invariably single-point detection systems.