摘要
针对普通转速表存在体积大、精度低等问题。给出以单片机为核心的红外转速表的组成系统结构及设计方法。论述信号检测、数据保护、时间读取、参数选择和以PIC16F873单片机为核心实现转速、日历时钟等电路的组成原理及程序设计分析。该系统可通过功能扩展广泛应用到其他领域。
In view of the shortcomings of big volume, bad accuracy and so forth of comrnon tachometer, a systematic structure and designing method for infrared and digital tachometer centering on single chip computer are presented. Signal detection, protection of data, time controlling and the choice of parameters are discussed. On the basis of PIC16F873, circuit principle for rotational speed and calendar clocks can be realized. By functional enlargement, this systern can also be used in other fields.
出处
《现代电子技术》
2008年第16期177-179,共3页
Modern Electronics Technique
