摘要
针对普通超声波测距系统测量精度低的问题,文章介绍了一种基于ACAM公司高精度时间测量芯片TDC-GP21、控制芯片采用ATMEGA8A单片机的高精度超声波测距系统,给出了系统具体的硬件结构图、时间测量芯片控制配置图和软件流程图,并对工作过程进行了详细介绍。实验结果表明可有效提高距离测量精度。
According to the low measurement accuracy of common ultrasonic telemeter system,this paper introduces a real-time system of ultrasonic distance measurement instrument based on the high precision interval measuring chip-TDC-GP21 which is controlled by ATMEGA8A SCM.Specific hardware structure diagrams,configuration of TDC-GP21 and software flow chart are given.Experiment results show that it effectively improves the measuring precision.
出处
《仪表技术》
2013年第4期30-32,共3页
Instrumentation Technology
