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duo duan mi zi shu ma xian shi he xian shi liang du cheng kong shi yong dian lu
Author(s): 
Pages: 31-33
Year: Issue:  4
Journal: Automation & Instrumentation

Keyword:  智能仪器数码显示实用电路智能仪表人机接口控制电路操作提示共阴极时钟线数码管;
Abstract: <正> 1 前言 在智能仪器仪表设计中,人机接口非常重要,操作人员根据智能仪器的显示获得有关信息或必要的操作提示,一般仪器显示有两种,一种是CRT显示,价格昂贵,控制电路复杂,不适合小型智能仪表;另一种为LED(或LCD)显示。由于它成本低,电路简单而受到广大设计人员的青睐。目前,智能仪器中应用较多的为七段LED显示,它能显示0~9数字及有限个字符,然而,当仪器要显示稍复杂信息和多种字符时,七段LED
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