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文章介绍了无触点键盘的形成方法及无触点键盘校线器的电路组成，详细分析了利用计算机的健盘扫描技术进行多芯线两端校对操作的原理。
This paper introduces the formation of non-contact keyboard and the circuit composition of non-contact keyboard. It analyzes in detail the principle of calibrating both ends of multi-core line by the computer’s healthy disk scanning technology.