摘要
超声波测距由于使用方便、可靠性强,广泛应用于各行各业中。详细介绍了超声波测距原理和基于STC89C52单片机控制的超声波测距系统,超声波模块选用HC-SR04,考虑到温度对超声波传播速度的影响,采用DS18B20温度传感器实现温度补偿,实验数据表明,采用温度补偿后提高了测量的精度和稳定性。
The ultrasonic distance measurement technology is widely used in all walks of life due to its high reliability and being easy to use. This paper describes in detail the principle of ultrasonic ranging and the ultrasonic ranging system based on the STC89 C52 single-chip. HC-SR04 is selected as the ultrasonic module. Considering the influence of temperature on ultrasonic propagation velocity,in this paper,DS18 B20 temperature sensor is used to realize temperature compensation. The experimental data show that the accuracy and stability of the measurement are improved after temperature compensation.
作者
胡林林
付龙
HU Lin-lin;FU Long(Department of Electrical Engineering, Guangdong Polytechnic College, Zhaoqing 526100, China;Department of Industrial Automation, Guangdong Polytechnic College, Zhaoqing 526100, China)
出处
《仪表技术》
2018年第2期33-35,共3页
Instrumentation Technology
关键词
超声波
测距
温度传感器
单片机
ultrasonic wave
measurement distance
temperature sensor
single chip
