毕业设计（论文）题 目：基于 单片机的超声波测距仪 学 院： 专业班级： 指导老师： 职称： 学生姓名： 学 号： 下载后可任意编辑下载后可任意编辑摘 要在空气介质中超声测距传感器因其性能好，价格低廉、使用方便，在现场机器人定位系统、车辆自动导航、车辆安全行驶辅助系统、城市交通管理和高速公路管理监测系统，以及河道、油井和仓库及料位的探测中都有应用。由于超声波传播不易受干扰，能量消耗缓慢，在介质中传播的距离较远，因而超声波常常用于距离的测量，如测距和物位测量等都可以通过超声波来实现。为此深化讨论超声波的产生与传播规律、开发高性能超声波换能器及其收发电路，对于超声波检测技术的进展具有十分重要的现实意义。本设计介绍了基于单片机控制的超声测距的原理：由 STC89C52 控制定时器产生一定频率脉冲，计算从发射到接收回波时间，从而得到实测距离，数据处理采纳，显示距离，语音播报。关键词：超声波，距离测量，语音播报，单片机下载后可任意编辑ABSTRACTIn the air medium, ultrasonic range finder sensor because of its good performance, low price, convenient use, in the field of robot positioning system, automatic vehicle navigation, vehicle safety driving assist system, city traffic management and management of expressway monitoring system, as well as river, well and warehouse and material level detection used in. Because the ultrasonic wave propagation is not susceptible to interference, energy consumption slow, medium of communication in the longer distance, which are often used for ultrasonic distance measurement, such as the location and level measurement can be achieved by ultrasound. Therefore, in-depth study of ultrasonic generation and propagation, the development of high performance ultrasonic transducer and its transceiver circuit, the ultrasonic detection technology development has very important real sense.This article introduces the design of control based on single chip ultrasonic ranging principle: control by STC89C52 timer produces a cert...
