基于无线收发的超声波液位测量仪  

Ultrasonic Liquid Level Measuring Instrument Based on Wireless Transmission

作　　者：卢超[1] 

机构地区：[1]陕西理工学院物电学院,陕西汉中723000

出　　处：《压电与声光》2014年第1期150-155,共6页Piezoelectrics & Acoustooptics

基　　金：陕西省教育厅专项科研基金资助项目(2013JK1060)

摘　　要：利用无线通信设计了一种超声波液位测量仪,以STC89C52为核心控制器,选用超声波测距模块作为液位测量传感器,利用NRF24L01无线模块对数据进行实时无线发送与接收,再将接收到的数据实时处理后送至液晶屏显示,同时通过串口经MAX232电平转换后送至PC机实时显示并绘制数据曲线。该仪表实现了远距离无线液位实时测量,取代了传统的浮力式和电缆式液位测量仪,数据结果精度高,控制方便。An ultrasonic liquid level measuring instrument was designed by using wireless communication,taking STC89C52 as the core controller and ultrasonic ranging module as the liquid level measuring sensor.NRF24L01 wireless module was adopted for real-time wireless transmission and receiving of the data.Then the received data was sent to the LCD display screen after real-time processing.At the same time,the data was sent to the PC real-time display by MAX232 level conversion through the serial port and data curve was drawn.Experimental results showed that the instrument could realize long-distance wireless real-time liquid level measurement,replaced the buoyancy and cable type liquid level measuring instrument of tradition.It had the characteristics of high precision and convenient data control.

关 键 词：超声波测距 单片机 无线 串口 

分 类 号：TH13[机械工程—机械制造及自动化] TP39[自动化与计算机技术—计算机应用技术]