摘要
设计了一种基于单片机的单脉冲反射式超声测距系统,该系统以空气中超声波的传播速度为确定条件,利用反射超声波测量待测距离;提出了系统的总体构成,设计了系统发射、接收、检测部分的电路,基于渡越时间法设计了测距软件;最后给出了实验结果及误差分析。
The paper designed a kind of single-pulse-refection ultrasonic distancemeter system in detail based on microeontroller. The system could measure certain distance with the refected wave on condition in which the speed of transmitting wave is fixed. The whole structure of the system was proposed and the cureuit of transmission, receiver, detection of this distaneemeter system is brough out. Software realization based on TOFD（fime of flight diffraction reflection） method is also given. At last the result and error analysis of the experiments is presented.
出处
《装备制造技术》
2008年第11期77-79,共3页
Equipment Manufacturing Technology
关键词
单脉冲反射
渡越时间
超声测距
single-pulse-refectiont
ime of flight diffraction reflection
ultrosonic distancemeter
