超声波测距仪的设计与制作  

Design and manufacture of ultrasonic distance measurement instrument

作　　者：耶晓东[1] 

机构地区：[1]陕西理工学院电信工程系,汉中723003

出　　处：《国外电子测量技术》2008年第11期53-55,66,共4页Foreign Electronic Measurement Technology

基　　金：陕西理工学院科研基金资助项目(SLG0608)

摘　　要：针对接触式测距仪抗粉尘能力差、容易失灵、精度低等缺点,本文介绍了非接触式超声波测距仪的设计与制作过程,该系统以AT89S51单片机为核心,配以超声波发射电路、超声波接收检测电路和显示电路等几个部分。经测试,系统能够测量10～526 cm范围内的被测对象,且最大误差为±1 cm。Aiming at the shortcomings,including the poor performance of anti-dust for contact range finder,out of order easily, and low accuracy, this paper is mainly devoted to introduce processes of design and manufacture for the non-contact ultrasonic range finder. The system takes AT89S51 single chip as a core, which matched by the ultrasonic transmission circuit, the ultrasonic reception examination circuit and the display circuit and so on. The test results show the system can measure 10-526 cm range of targets, and the maximum error is -4±cm.

关 键 词：AT89S51 超声波传感器 测距 

分 类 号：TP216[自动化与计算机技术—检测技术与自动化装置]