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基于ATMEGA8的低成本超声波测距仪设计
引用本文:许红梅,刘相华.基于ATMEGA8的低成本超声波测距仪设计[J].广西机械,2012(8):266-268.
作者姓名:许红梅  刘相华
作者单位:山东省东营市垦利县供电公司,山东垦利257500
摘    要:介绍了一种由ATMEGA8单片机控制的成本低、体积小的智能超声波测距仪;首先介绍了超声波的测距原理,重点阐述了整个超声波测距仪的硬件电路以及软件的实现方法。考虑到温度对超声波波速的影响,增加了温度补偿电路来消除温度误差;通过对该系统进行的实验,验证了方法的正确性和有效性,并能够达到较高的测量精度。。

关 键 词:ATMEGA8  超声波测距  PWM  温度补偿

Design of the Ultrasonic Distance Measurement System with Low Cost Based on ATMEGA8
XU Hong-mei,LIU Xiang-hua.Design of the Ultrasonic Distance Measurement System with Low Cost Based on ATMEGA8[J].Guangxi Machinery,2012(8):266-268.
Authors:XU Hong-mei  LIU Xiang-hua
Affiliation:(Kenli County Power Supply Company,Kenli Shandong 257500,China)
Abstract:This paper introduces an intelligent ultrasonic meter with small volume and low cost which was controlled by ATMEGA8 SCM.First described the principium of the ultrasonic distance measurement,then mainly described its hardware circuit and software design.This design solved the temperature offset problem effect with DS18B20.Then gave the project software and hardware methods.The test results demonstrate the validity of all the methods proposed in this dissertation,and the test show that this intelligent ultrasonic meter has high accuracy.
Keywords:ATMEGA8  ultrasonic measurement  PWM  Temperature compensation
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