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超声波测距的电路设计与单片机编程

于 2022-01-26 发布 文件大小:474.99 kB
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 距离是在不同的场合和控制中需要检测的一个参数 , 所以 ,测距就成为数据采集中要解决的一个问题。尽管测 距有多种方式 ,比如 ,激光测距 ,微波测距 ,红外线测距和 超声波测距等。但是 ,超声波测距不失为一种简单可行的 方法。虽然超声波测距电路多种多样 ,甚至已有专用超声 波测距集成电路。但是 ,有的电路复杂 ,技术难度大 ,有的 调试困难 ,有的元件不易购买。本文介绍的电路 ,成本低 廉 ,性能可靠 ,所用元件易购 ,并且利用测距原理 ,结合单 片机的数据处理 ,使测量精度提高 ,电路实现容易 ,无须调 试 ,工作稳定可靠

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