基于单片机的超声波测距系统的设计  

Design of Ultrasonic Telemeter Based on Single Chip Processor

作　　者：易丽华[1] 彭劲松[1] 

机构地区：[1]湖南科技职业学院

出　　处：《山西电子技术》2010年第4期26-26,33,共2页Shanxi Electronic Technology

摘　　要：基于超声波实现无接触式测距原理,介绍了一种基于单片机控制的超声波测距系统的设计方法。由单片机软件产生40 kHz超声波,并测量回波时间,可精确到us级。为提高测距精度,采取了温度补偿、角度补偿措施。实验表明系统具有较高的测量精度和实用价值。This paper introduces a ultrasonic distance measurement device based on single chip processor.This telemeter adopts the microprocessor to send out ultrasonic wave of 40 kHz and measure the echo time.It also adopts measures to make up the error by temperature and angle in order to increase accuracy.Experiments show that the designed circuit has higher accuracy and can reach practical requirement in measurement.

关 键 词：超声波 测距 单片机 

分 类 号：TP274.53[自动化与计算机技术—检测技术与自动化装置]